21370885069274 has 16 divisors (see below), whose sum is σ = 34670362911912. Its totient is φ = 9821152858368.

The previous prime is 21370885069231. The next prime is 21370885069297. The reversal of 21370885069274 is 47296058807312.

It can be written as a sum of positive squares in 4 ways, for example, as 15200306145049 + 6170578924225 = 3898757^2 + 2484065^2 .

It is a super-3 number, since 3×21370885069274³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1763850419 + ... + 1763862534.

It is a 1-persistent number, because it is pandigital, but 2⋅21370885069274 = 42741770138548 is not.

Almost surely, 2^{21370885069274} is an apocalyptic number.

21370885069274 is a deficient number, since it is larger than the sum of its proper divisors (13299477842638).

21370885069274 is a wasteful number, since it uses less digits than its factorization.

21370885069274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3527713201.

The product of its (nonzero) digits is 40642560, while the sum is 62.

The spelling of 21370885069274 in words is "twenty-one trillion, three hundred seventy billion, eight hundred eighty-five million, sixty-nine thousand, two hundred seventy-four".