26399453232 has 40 divisors (see below), whose sum is σ = 70041797296. Its totient is φ = 8561984256.

The previous prime is 26399453209. The next prime is 26399453237. The reversal of 26399453232 is 23235499362.

It is a super-2 number, since 2×26399453232² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (26399453237) 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, 7430503 + ... + 7434054.

Almost surely, 2^26399453232 is an apocalyptic number.

It is an amenable number.

26399453232 is an abundant number, since it is smaller than the sum of its proper divisors (43642344064).

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

26399453232 is a wasteful number, since it uses less digits than its factorization.

26399453232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14864605 (or 14864599 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 48.

The spelling of 26399453232 in words is "twenty-six billion, three hundred ninety-nine million, four hundred fifty-three thousand, two hundred thirty-two".