15464401256 has 16 divisors (see below), whose sum is σ = 30256437600. Its totient is φ = 7396017904.

The previous prime is 15464401189. The next prime is 15464401273. The reversal of 15464401256 is 65210446451.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 42022646 + ... + 42023013.

It is an arithmetic number, because the mean of its divisors is an integer number (1891027350).

Almost surely, 2^15464401256 is an apocalyptic number.

It is an amenable number.

15464401256 is a deficient number, since it is larger than the sum of its proper divisors (14792036344).

15464401256 is a wasteful number, since it uses less digits than its factorization.

15464401256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84045688 (or 84045684 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 15464401256 in words is "fifteen billion, four hundred sixty-four million, four hundred one thousand, two hundred fifty-six".