26930421504 has 108 divisors (see below), whose sum is σ = 88739532336. Its totient is φ = 7694401536.

The previous prime is 26930421499. The next prime is 26930421517. The reversal of 26930421504 is 40512403962.

It is a happy number.

26930421504 is a `hidden beast` number, since 26 + 93 + 0 + 42 + 1 + 504 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 818769 + ... + 851024.

Almost surely, 2^26930421504 is an apocalyptic number.

26930421504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26930421504 is an abundant number, since it is smaller than the sum of its proper divisors (61809110832).

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

26930421504 is a wasteful number, since it uses less digits than its factorization.

26930421504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669822 (or 1669805 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 26930421504 in words is "twenty-six billion, nine hundred thirty million, four hundred twenty-one thousand, five hundred four".