15747489120 has 768 divisors, whose sum is σ = 60197437440. Its totient is φ = 3419750400.

The previous prime is 15747489119. The next prime is 15747489127. The reversal of 15747489120 is 2198474751.

It is a Cunningham number, because it is equal to 125489²-1.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 15747489120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15747489127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 176938036 + ... + 176938124.

It is an arithmetic number, because the mean of its divisors is an integer number (78382080).

Almost surely, 2^15747489120 is an apocalyptic number.

15747489120 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 15747489120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30098718720).

15747489120 is an abundant number, since it is smaller than the sum of its proper divisors (44449948320).

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

15747489120 is a wasteful number, since it uses less digits than its factorization.

15747489120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 15747489120 in words is "fifteen billion, seven hundred forty-seven million, four hundred eighty-nine thousand, one hundred twenty".