252640498047 has 32 divisors (see below), whose sum is σ = 394482514944. Its totient is φ = 140803142400.

The previous prime is 252640498043. The next prime is 252640498051. The reversal of 252640498047 is 740894046252.

It is an interprime number because it is at equal distance from previous prime (252640498043) and next prime (252640498051).

It is not a de Polignac number, because 252640498047 - 2² = 252640498043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252640498043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2986422 + ... + 3069852.

It is an arithmetic number, because the mean of its divisors is an integer number (12327578592).

Almost surely, 2^252640498047 is an apocalyptic number.

252640498047 is a deficient number, since it is larger than the sum of its proper divisors (141842016897).

252640498047 is a wasteful number, since it uses less digits than its factorization.

252640498047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86999.

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 252640498047 in words is "two hundred fifty-two billion, six hundred forty million, four hundred ninety-eight thousand, forty-seven".