637427030023313 has 4 divisors (see below), whose sum is σ = 659407272437940. Its totient is φ = 615446787608688.

The previous prime is 637427030023261. The next prime is 637427030023391. The reversal of 637427030023313 is 313320030724736.

637427030023313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 354041554944064 + 283385475079249 = 18815992^2 + 16834057^2 .

It is a cyclic number.

It is not a de Polignac number, because 637427030023313 - 2⁸ = 637427030023057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (637427030523313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10990121207270 + ... + 10990121207327.

It is an arithmetic number, because the mean of its divisors is an integer number (164851818109485).

Almost surely, 2^{637427030023313} is an apocalyptic number.

It is an amenable number.

637427030023313 is a deficient number, since it is larger than the sum of its proper divisors (21980242414627).

637427030023313 is a wasteful number, since it uses less digits than its factorization.

637427030023313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21980242414626.

The product of its (nonzero) digits is 1143072, while the sum is 44.

The spelling of 637427030023313 in words is "six hundred thirty-seven trillion, four hundred twenty-seven billion, thirty million, twenty-three thousand, three hundred thirteen".