78146183510231 has 2 divisors, whose sum is σ = 78146183510232. Its totient is φ = 78146183510230.

The previous prime is 78146183510167. The next prime is 78146183510249. The reversal of 78146183510231 is 13201538164187.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78146183510231 - 2⁶ = 78146183510167 is a prime.

It is a super-2 number, since 2×78146183510231² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78146183510231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78146183510251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39073091755115 + 39073091755116.

It is an arithmetic number, because the mean of its divisors is an integer number (39073091755116).

Almost surely, 2^{78146183510231} is an apocalyptic number.

78146183510231 is a deficient number, since it is larger than the sum of its proper divisors (1).

78146183510231 is an equidigital number, since it uses as much as digits as its factorization.

78146183510231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 78146183510231 in words is "seventy-eight trillion, one hundred forty-six billion, one hundred eighty-three million, five hundred ten thousand, two hundred thirty-one".