78146183530231 has 4 divisors (see below), whose sum is σ = 78487433240200. Its totient is φ = 77804933820264.

The previous prime is 78146183530183. The next prime is 78146183530249. The reversal of 78146183530231 is 13203538164187.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78146183530231 - 2¹¹ = 78146183528183 is a prime.

It is a super-2 number, since 2×78146183530231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78146183510231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170624854641 + ... + 170624855098.

It is an arithmetic number, because the mean of its divisors is an integer number (19621858310050).

Almost surely, 2^{78146183530231} is an apocalyptic number.

78146183530231 is a deficient number, since it is larger than the sum of its proper divisors (341249709969).

78146183530231 is a wasteful number, since it uses less digits than its factorization.

78146183530231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341249709968.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 78146183530231 in words is "seventy-eight trillion, one hundred forty-six billion, one hundred eighty-three million, five hundred thirty thousand, two hundred thirty-one".