651271054213 has 8 divisors (see below), whose sum is σ = 705518941400. Its totient is φ = 601173278784.

The previous prime is 651271054207. The next prime is 651271054229. The reversal of 651271054213 is 312450172156.

651271054213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 77529947364 + 573741106849 = 278442^2 + 757457^2 .

It is not a de Polignac number, because 651271054213 - 2¹³ = 651271046021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651271054283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148216068 + ... + 148220461.

It is an arithmetic number, because the mean of its divisors is an integer number (88189867675).

Almost surely, 2^651271054213 is an apocalyptic number.

It is an amenable number.

651271054213 is a deficient number, since it is larger than the sum of its proper divisors (54247887187).

651271054213 is an equidigital number, since it uses as much as digits as its factorization.

651271054213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296436568 (or 296436542 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 651271054213 in words is "six hundred fifty-one billion, two hundred seventy-one million, fifty-four thousand, two hundred thirteen".