4128156179631 has 12 divisors (see below), whose sum is σ = 6504973374120. Its totient is φ = 2501912836080.

The previous prime is 4128156179621. The next prime is 4128156179657. The reversal of 4128156179631 is 1369716518214.

4128156179631 is a `hidden beast` number, since 4 + 1 + 2 + 8 + 1 + 561 + 79 + 6 + 3 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-4128156179631 is a prime.

It is a super-2 number, since 2×4128156179631² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128156179621) 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, 20849273536 + ... + 20849273733.

It is an arithmetic number, because the mean of its divisors is an integer number (542081114510).

Almost surely, 2^{4128156179631} is an apocalyptic number.

4128156179631 is a deficient number, since it is larger than the sum of its proper divisors (2376817194489).

4128156179631 is a wasteful number, since it uses less digits than its factorization.

4128156179631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41698547286 (or 41698547283 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 4128156179631 in words is "four trillion, one hundred twenty-eight billion, one hundred fifty-six million, one hundred seventy-nine thousand, six hundred thirty-one".