26406660426 has 16 divisors (see below), whose sum is σ = 54041538144. Its totient is φ = 8597517264.

The previous prime is 26406660407. The next prime is 26406660431. The reversal of 26406660426 is 62406660462.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51175441 + ... + 51175956.

It is an arithmetic number, because the mean of its divisors is an integer number (3377596134).

Almost surely, 2^26406660426 is an apocalyptic number.

26406660426 is an abundant number, since it is smaller than the sum of its proper divisors (27634877718).

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

26406660426 is a wasteful number, since it uses less digits than its factorization.

26406660426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102351445.

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 26406660426 in words is "twenty-six billion, four hundred six million, six hundred sixty thousand, four hundred twenty-six".