252949374681 has 8 divisors (see below), whose sum is σ = 337268157504. Its totient is φ = 168631754160.

The previous prime is 252949374673. The next prime is 252949374703. The reversal of 252949374681 is 186473949252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252949374681 - 2³ = 252949374673 is a prime.

It is a super-2 number, since 2×252949374681² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (252949374661) 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, 688611 + ... + 989991.

It is an arithmetic number, because the mean of its divisors is an integer number (42158519688).

Almost surely, 2^252949374681 is an apocalyptic number.

It is an amenable number.

252949374681 is a deficient number, since it is larger than the sum of its proper divisors (84318782823).

252949374681 is a wasteful number, since it uses less digits than its factorization.

252949374681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581151.

The product of its digits is 26127360, while the sum is 60.

The spelling of 252949374681 in words is "two hundred fifty-two billion, nine hundred forty-nine million, three hundred seventy-four thousand, six hundred eighty-one".