56431401026 has 64 divisors (see below), whose sum is σ = 120337539840. Its totient is φ = 19101173760.

The previous prime is 56431401023. The next prime is 56431401053. The reversal of 56431401026 is 62010413465.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56431400983 and 56431401001.

It is not an unprimeable number, because it can be changed into a prime (56431401023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 795011 + ... + 863078.

It is an arithmetic number, because the mean of its divisors is an integer number (1880274060).

Almost surely, 2^56431401026 is an apocalyptic number.

56431401026 is an abundant number, since it is smaller than the sum of its proper divisors (63906138814).

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

56431401026 is a wasteful number, since it uses less digits than its factorization.

56431401026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658139.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 56431401026 in words is "fifty-six billion, four hundred thirty-one million, four hundred one thousand, twenty-six".