26421056562 has 32 divisors (see below), whose sum is σ = 53759784960. Its totient is φ = 8654196240.

The previous prime is 26421056531. The next prime is 26421056567. The reversal of 26421056562 is 26565012462.

It is a self number, because there is not a number n which added to its sum of digits gives 26421056562.

It is not an unprimeable number, because it can be changed into a prime (26421056567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 931563 + ... + 959505.

It is an arithmetic number, because the mean of its divisors is an integer number (1679993280).

Almost surely, 2^26421056562 is an apocalyptic number.

26421056562 is an abundant number, since it is smaller than the sum of its proper divisors (27338728398).

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

26421056562 is a wasteful number, since it uses less digits than its factorization.

26421056562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30678.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 26421056562 in words is "twenty-six billion, four hundred twenty-one million, fifty-six thousand, five hundred sixty-two".