147787448720 has 80 divisors (see below), whose sum is σ = 352379946240. Its totient is φ = 57608678400.

The previous prime is 147787448719. The next prime is 147787448723. The reversal of 147787448720 is 27844787741.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×147787448720² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 147787448720.

It is not an unprimeable number, because it can be changed into a prime (147787448723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2963351 + ... + 3012809.

It is an arithmetic number, because the mean of its divisors is an integer number (4404749328).

Almost surely, 2^147787448720 is an apocalyptic number.

147787448720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147787448720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176189973120).

147787448720 is an abundant number, since it is smaller than the sum of its proper divisors (204592497520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147787448720 is a wasteful number, since it uses less digits than its factorization.

147787448720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50424 (or 50418 counting only the distinct ones).

The product of its (nonzero) digits is 19668992, while the sum is 59.

The spelling of 147787448720 in words is "one hundred forty-seven billion, seven hundred eighty-seven million, four hundred forty-eight thousand, seven hundred twenty".