21270552004 has 48 divisors (see below), whose sum is σ = 40344640000. Its totient is φ = 9754183296.

The previous prime is 21270551989. The next prime is 21270552047. The reversal of 21270552004 is 40025507212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13731022 + ... + 13732570.

Almost surely, 2^21270552004 is an apocalyptic number.

It is an amenable number.

21270552004 is a deficient number, since it is larger than the sum of its proper divisors (19074087996).

21270552004 is a wasteful number, since it uses less digits than its factorization.

21270552004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092 (or 3090 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The spelling of 21270552004 in words is "twenty-one billion, two hundred seventy million, five hundred fifty-two thousand, four".