26921934630 has 64 divisors (see below), whose sum is σ = 71831623680. Its totient is φ = 7175202912.

The previous prime is 26921934607. The next prime is 26921934649. The reversal of 26921934630 is 3643912962.

26921934630 is a `hidden beast` number, since 2 + 6 + 9 + 2 + 1 + 9 + 3 + 4 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 477387 + ... + 530793.

It is an arithmetic number, because the mean of its divisors is an integer number (1122369120).

Almost surely, 2^26921934630 is an apocalyptic number.

26921934630 is an abundant number, since it is smaller than the sum of its proper divisors (44909689050).

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

26921934630 is a wasteful number, since it uses less digits than its factorization.

26921934630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55290 (or 55284 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The spelling of 26921934630 in words is "twenty-six billion, nine hundred twenty-one million, nine hundred thirty-four thousand, six hundred thirty".