78531183068511 has 16 divisors (see below), whose sum is σ = 105533709926400. Its totient is φ = 51941396874528.

The previous prime is 78531183068483. The next prime is 78531183068537. The reversal of 78531183068511 is 11586038113587.

It is not a de Polignac number, because 78531183068511 - 2⁶ = 78531183068447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78531183068561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42156145 + ... + 43979573.

It is an arithmetic number, because the mean of its divisors is an integer number (6595856870400).

Almost surely, 2^{78531183068511} is an apocalyptic number.

78531183068511 is a deficient number, since it is larger than the sum of its proper divisors (27002526857889).

78531183068511 is a wasteful number, since it uses less digits than its factorization.

78531183068511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936598.

The product of its (nonzero) digits is 4838400, while the sum is 57.

The spelling of 78531183068511 in words is "seventy-eight trillion, five hundred thirty-one billion, one hundred eighty-three million, sixty-eight thousand, five hundred eleven".