78674008278 has 16 divisors (see below), whose sum is σ = 157355573760. Its totient is φ = 26223409896.

The previous prime is 78674008213. The next prime is 78674008307. The reversal of 78674008278 is 87280047687.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174750 + ... + 433457.

It is an arithmetic number, because the mean of its divisors is an integer number (9834723360).

Almost surely, 2^78674008278 is an apocalyptic number.

78674008278 is an abundant number, since it is smaller than the sum of its proper divisors (78681565482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78674008278 is a wasteful number, since it uses less digits than its factorization.

78674008278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629771.

The product of its (nonzero) digits is 8429568, while the sum is 57.

The spelling of 78674008278 in words is "seventy-eight billion, six hundred seventy-four million, eight thousand, two hundred seventy-eight".