78612462440057 has 16 divisors (see below), whose sum is σ = 98812391419392. Its totient is φ = 60875491135680.

The previous prime is 78612462440027. The next prime is 78612462440063. The reversal of 78612462440057 is 75004426421687.

It is not a de Polignac number, because 78612462440057 - 2¹⁶ = 78612462374521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78612462439984 and 78612462440011.

It is not an unprimeable number, because it can be changed into a prime (78612462440027) 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, 9190136294 + ... + 9190144847.

It is an arithmetic number, because the mean of its divisors is an integer number (6175774463712).

Almost surely, 2^{78612462440057} is an apocalyptic number.

It is an amenable number.

78612462440057 is a deficient number, since it is larger than the sum of its proper divisors (20199928979335).

78612462440057 is a wasteful number, since it uses less digits than its factorization.

78612462440057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18380281208.

The product of its (nonzero) digits is 18063360, while the sum is 56.

The spelling of 78612462440057 in words is "seventy-eight trillion, six hundred twelve billion, four hundred sixty-two million, four hundred forty thousand, fifty-seven".