15768267240 has 64 divisors (see below), whose sum is σ = 51605242560. Its totient is φ = 3822609920.

The previous prime is 15768267239. The next prime is 15768267283. The reversal of 15768267240 is 4276286751.

It is a self number, because there is not a number n which added to its sum of digits gives 15768267240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5971509 + ... + 5974148.

It is an arithmetic number, because the mean of its divisors is an integer number (806331915).

Almost surely, 2^15768267240 is an apocalyptic number.

15768267240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15768267240 is an abundant number, since it is smaller than the sum of its proper divisors (35836975320).

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

15768267240 is a wasteful number, since it uses less digits than its factorization.

15768267240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11945682 (or 11945678 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 15768267240 in words is "fifteen billion, seven hundred sixty-eight million, two hundred sixty-seven thousand, two hundred forty".