21270058374 has 32 divisors (see below), whose sum is σ = 42688800000. Its totient is φ = 7065265824.

The previous prime is 21270058357. The next prime is 21270058393. The reversal of 21270058374 is 47385007212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6445777 + ... + 6449075.

It is an arithmetic number, because the mean of its divisors is an integer number (1334025000).

Almost surely, 2^21270058374 is an apocalyptic number.

21270058374 is an abundant number, since it is smaller than the sum of its proper divisors (21418741626).

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

21270058374 is a wasteful number, since it uses less digits than its factorization.

21270058374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6732.

The product of its (nonzero) digits is 94080, while the sum is 39.

The spelling of 21270058374 in words is "twenty-one billion, two hundred seventy million, fifty-eight thousand, three hundred seventy-four".