26490440973 has 16 divisors (see below), whose sum is σ = 35993315520. Its totient is φ = 17324047104.

The previous prime is 26490440939. The next prime is 26490440987. The reversal of 26490440973 is 37904409462.

It is not a de Polignac number, because 26490440973 - 2²² = 26486246669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26490440993) 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, 1228398 + ... + 1249776.

It is an arithmetic number, because the mean of its divisors is an integer number (2249582220).

Almost surely, 2^26490440973 is an apocalyptic number.

It is an amenable number.

26490440973 is a deficient number, since it is larger than the sum of its proper divisors (9502874547).

26490440973 is a wasteful number, since it uses less digits than its factorization.

26490440973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29228.

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 26490440973 in words is "twenty-six billion, four hundred ninety million, four hundred forty thousand, nine hundred seventy-three".