15768510912 has 252 divisors, whose sum is σ = 56778893808. Its totient is φ = 4095590400.

The previous prime is 15768510911. The next prime is 15768510931. The reversal of 15768510912 is 21901586751.

It is a tau number, because it is divible by the number of its divisors (252).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15768510911) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 471712 + ... + 504032.

Almost surely, 2^15768510912 is an apocalyptic number.

15768510912 is a gapful number since it is divisible by the number (12) 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 15768510912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28389446904).

15768510912 is an abundant number, since it is smaller than the sum of its proper divisors (41010382896).

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

15768510912 is a wasteful number, since it uses less digits than its factorization.

15768510912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32368 (or 32344 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 45.

The spelling of 15768510912 in words is "fifteen billion, seven hundred sixty-eight million, five hundred ten thousand, nine hundred twelve".