26040983664 has 20 divisors (see below), whose sum is σ = 67272541256. Its totient is φ = 8680327872.

The previous prime is 26040983629. The next prime is 26040983677. The reversal of 26040983664 is 46638904062.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 542520493 = 26040983664 / (2 + 6 + 0 + 4 + 0 + 9 + 8 + 3 + 6 + 6 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271260199 + ... + 271260294.

Almost surely, 2^26040983664 is an apocalyptic number.

26040983664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26040983664 is an abundant number, since it is smaller than the sum of its proper divisors (41231557592).

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

26040983664 is a wasteful number, since it uses less digits than its factorization.

26040983664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542520504 (or 542520498 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 48.

The spelling of 26040983664 in words is "twenty-six billion, forty million, nine hundred eighty-three thousand, six hundred sixty-four".