78560465642 has 8 divisors (see below), whose sum is σ = 117849589956. Its totient is φ = 39277268992.

The previous prime is 78560465609. The next prime is 78560465651. The reversal of 78560465642 is 24656406587.

It can be written as a sum of positive squares in 2 ways, for example, as 78545107081 + 15358561 = 280259^2 + 3919^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448633 + ... + 1501884.

Almost surely, 2^78560465642 is an apocalyptic number.

78560465642 is a deficient number, since it is larger than the sum of its proper divisors (39289124314).

78560465642 is a wasteful number, since it uses less digits than its factorization.

78560465642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963832.

The product of its (nonzero) digits is 9676800, while the sum is 53.

The spelling of 78560465642 in words is "seventy-eight billion, five hundred sixty million, four hundred sixty-five thousand, six hundred forty-two".