2021270391424 has 16 divisors (see below), whose sum is σ = 4026749608170. Its totient is φ = 1010635195648.

The previous prime is 2021270391391. The next prime is 2021270391443. The reversal of 2021270391424 is 4241930721202.

It can be written as a sum of positive squares in only one way, i.e., 1030289961024 + 990980430400 = 1015032^2 + 995480^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7895587339 + ... + 7895587594.

Almost surely, 2^{2021270391424} is an apocalyptic number.

It is an amenable number.

2021270391424 is a deficient number, since it is larger than the sum of its proper divisors (2005479216746).

2021270391424 is an equidigital number, since it uses as much as digits as its factorization.

2021270391424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15791174947 (or 15791174935 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 2021270391424 in words is "two trillion, twenty-one billion, two hundred seventy million, three hundred ninety-one thousand, four hundred twenty-four".