253081877138802 has 24 divisors (see below), whose sum is σ = 548471678208636. Its totient is φ = 84340993239936.

The previous prime is 253081877138749. The next prime is 253081877138809. The reversal of 253081877138802 is 208831778180352.

253081877138802 is a `hidden beast` number, since 2 + 5 + 3 + 0 + 8 + 187 + 71 + 388 + 0 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 238282475832801 + 14799401306001 = 15436401^2 + 3846999^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 253081877138802.

It is not an unprimeable number, because it can be changed into a prime (253081877138809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1635959923 + ... + 1636114614.

Almost surely, 2^{253081877138802} is an apocalyptic number.

253081877138802 is an abundant number, since it is smaller than the sum of its proper divisors (295389801069834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253081877138802 is a wasteful number, since it uses less digits than its factorization.

253081877138802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3272078842 (or 3272078839 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 63.

The spelling of 253081877138802 in words is "two hundred fifty-three trillion, eighty-one billion, eight hundred seventy-seven million, one hundred thirty-eight thousand, eight hundred two".