78875742706387 has 16 divisors (see below), whose sum is σ = 90869182725888. Its totient is φ = 67761245680480.

The previous prime is 78875742706363. The next prime is 78875742706393. The reversal of 78875742706387 is 78360724757887.

It is not a de Polignac number, because 78875742706387 - 2¹⁵ = 78875742673619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78875742706087) 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, 1878062308 + ... + 1878104305.

It is an arithmetic number, because the mean of its divisors is an integer number (5679323920368).

Almost surely, 2^{78875742706387} is an apocalyptic number.

78875742706387 is a deficient number, since it is larger than the sum of its proper divisors (11993440019501).

78875742706387 is a wasteful number, since it uses less digits than its factorization.

78875742706387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756166730.

The product of its (nonzero) digits is 6195732480, while the sum is 79.

The spelling of 78875742706387 in words is "seventy-eight trillion, eight hundred seventy-five billion, seven hundred forty-two million, seven hundred six thousand, three hundred eighty-seven".