12403561026 has 64 divisors (see below), whose sum is σ = 26430022656. Its totient is φ = 3872193600.

The previous prime is 12403561007. The next prime is 12403561067. The reversal of 12403561026 is 62016530421.

It is a super-2 number, since 2×12403561026² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12403560984 and 12403561002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1907641 + ... + 1914131.

It is an arithmetic number, because the mean of its divisors is an integer number (412969104).

Almost surely, 2^12403561026 is an apocalyptic number.

12403561026 is an abundant number, since it is smaller than the sum of its proper divisors (14026461630).

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

12403561026 is a wasteful number, since it uses less digits than its factorization.

12403561026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6807.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 12403561026 in words is "twelve billion, four hundred three million, five hundred sixty-one thousand, twenty-six".