26440871320 has 32 divisors (see below), whose sum is σ = 59633309520. Its totient is φ = 10551219840.

The previous prime is 26440871287. The next prime is 26440871321. The reversal of 26440871320 is 2317804462.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 26440871320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26440871321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 768222 + ... + 801901.

Almost surely, 2^26440871320 is an apocalyptic number.

26440871320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26440871320 is an abundant number, since it is smaller than the sum of its proper divisors (33192438200).

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

26440871320 is a wasteful number, since it uses less digits than its factorization.

26440871320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570555 (or 1570551 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 26440871320 in words is "twenty-six billion, four hundred forty million, eight hundred seventy-one thousand, three hundred twenty".