253429336613871 has 24 divisors (see below), whose sum is σ = 399446200839504. Its totient is φ = 153553920514560.

The previous prime is 253429336613863. The next prime is 253429336613909. The reversal of 253429336613871 is 178316633924352.

253429336613871 is a `hidden beast` number, since 2 + 5 + 3 + 4 + 2 + 9 + 3 + 3 + 6 + 613 + 8 + 7 + 1 = 666.

It is not a de Polignac number, because 253429336613871 - 2³ = 253429336613863 is a prime.

It is a super-2 number, since 2×253429336613871² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253429336613799 and 253429336613808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253429336613861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329754466 + ... + 330522111.

It is an arithmetic number, because the mean of its divisors is an integer number (16643591701646).

Almost surely, 2^{253429336613871} is an apocalyptic number.

253429336613871 is a deficient number, since it is larger than the sum of its proper divisors (146016864225633).

253429336613871 is a wasteful number, since it uses less digits than its factorization.

253429336613871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660280471 (or 660280468 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 63.

The spelling of 253429336613871 in words is "two hundred fifty-three trillion, four hundred twenty-nine billion, three hundred thirty-six million, six hundred thirteen thousand, eight hundred seventy-one".