26397560880 has 160 divisors (see below), whose sum is σ = 94060497600. Its totient is φ = 6796597248.

The previous prime is 26397560873. The next prime is 26397560881. The reversal of 26397560880 is 8806579362.

It is a happy number.

26397560880 is a `hidden beast` number, since 26 + 3 + 9 + 7 + 5 + 608 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (26397560881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148069 + ... + 273348.

It is an arithmetic number, because the mean of its divisors is an integer number (587878110).

Almost surely, 2^26397560880 is an apocalyptic number.

26397560880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26397560880 is an abundant number, since it is smaller than the sum of its proper divisors (67662936720).

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

26397560880 is a wasteful number, since it uses less digits than its factorization.

26397560880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421468 (or 421456 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 26397560880 in words is "twenty-six billion, three hundred ninety-seven million, five hundred sixty thousand, eight hundred eighty".