1147788148720 has 40 divisors (see below), whose sum is σ = 2760628397760. Its totient is φ = 443283697920.

The previous prime is 1147788148669. The next prime is 1147788148723. The reversal of 1147788148720 is 278418877411.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147788148723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247365816 + ... + 247370455.

It is an arithmetic number, because the mean of its divisors is an integer number (69015709944).

Almost surely, 2^{1147788148720} is an apocalyptic number.

1147788148720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1147788148720 is an abundant number, since it is smaller than the sum of its proper divisors (1612840249040).

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

1147788148720 is a wasteful number, since it uses less digits than its factorization.

1147788148720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494736313 (or 494736307 counting only the distinct ones).

The product of its (nonzero) digits is 5619712, while the sum is 58.

The spelling of 1147788148720 in words is "one trillion, one hundred forty-seven billion, seven hundred eighty-eight million, one hundred forty-eight thousand, seven hundred twenty".