26213890507 has 16 divisors (see below), whose sum is σ = 30206592000. Its totient is φ = 22283886240.

The previous prime is 26213890463. The next prime is 26213890513. The reversal of 26213890507 is 70509831262.

It is not a de Polignac number, because 26213890507 - 2¹⁵ = 26213857739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26213890597) 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, 402969 + ... + 463477.

It is an arithmetic number, because the mean of its divisors is an integer number (1887912000).

Almost surely, 2^26213890507 is an apocalyptic number.

26213890507 is a deficient number, since it is larger than the sum of its proper divisors (3992701493).

26213890507 is a wasteful number, since it uses less digits than its factorization.

26213890507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61026.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 26213890507 in words is "twenty-six billion, two hundred thirteen million, eight hundred ninety thousand, five hundred seven".