5178012636231 has 24 divisors (see below), whose sum is σ = 7797691723536. Its totient is φ = 3308111614080.

The previous prime is 5178012636197. The next prime is 5178012636263. The reversal of 5178012636231 is 1326362108715.

It is a happy number.

5178012636231 is a `hidden beast` number, since 5 + 1 + 7 + 8 + 0 + 1 + 2 + 636 + 2 + 3 + 1 = 666.

It is not a de Polignac number, because 5178012636231 - 2¹¹ = 5178012634183 is a prime.

It is a super-2 number, since 2×5178012636231² (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 (5178012636631) 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, 126204750 + ... + 126245771.

It is an arithmetic number, because the mean of its divisors is an integer number (324903821814).

Almost surely, 2^{5178012636231} is an apocalyptic number.

5178012636231 is a deficient number, since it is larger than the sum of its proper divisors (2619679087305).

5178012636231 is a wasteful number, since it uses less digits than its factorization.

5178012636231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252450623 (or 252450620 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 5178012636231 in words is "five trillion, one hundred seventy-eight billion, twelve million, six hundred thirty-six thousand, two hundred thirty-one".