26513238964 has 48 divisors (see below), whose sum is σ = 49518798336. Its totient is φ = 12377664000.

The previous prime is 26513238959. The next prime is 26513238967. The reversal of 26513238964 is 46983231562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26513238967) 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, 11324434 + ... + 11326774.

It is an arithmetic number, because the mean of its divisors is an integer number (1031641632).

Almost surely, 2^26513238964 is an apocalyptic number.

It is an amenable number.

26513238964 is a deficient number, since it is larger than the sum of its proper divisors (23005559372).

26513238964 is a wasteful number, since it uses less digits than its factorization.

26513238964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3616 (or 3614 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

The spelling of 26513238964 in words is "twenty-six billion, five hundred thirteen million, two hundred thirty-eight thousand, nine hundred sixty-four".