70870887770878 has 32 divisors (see below), whose sum is σ = 116427700620000. Its totient is φ = 32154257571456.

The previous prime is 70870887770861. The next prime is 70870887770887. The reversal of 70870887770878 is 87807778807807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50750748 + ... + 52128496.

It is an arithmetic number, because the mean of its divisors is an integer number (3638365644375).

Almost surely, 2^{70870887770878} is an apocalyptic number.

70870887770878 is a deficient number, since it is larger than the sum of its proper divisors (45556812849122).

70870887770878 is a wasteful number, since it uses less digits than its factorization.

70870887770878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411356.

The product of its (nonzero) digits is 3855122432, while the sum is 82.

The spelling of 70870887770878 in words is "seventy trillion, eight hundred seventy billion, eight hundred eighty-seven million, seven hundred seventy thousand, eight hundred seventy-eight".