78796029778 has 16 divisors (see below), whose sum is σ = 124592307840. Its totient is φ = 37271178000.

The previous prime is 78796029743. The next prime is 78796029791. The reversal of 78796029778 is 87792069787.

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, 1452378 + ... + 1505653.

It is an arithmetic number, because the mean of its divisors is an integer number (7787019240).

Almost surely, 2^78796029778 is an apocalyptic number.

78796029778 is a deficient number, since it is larger than the sum of its proper divisors (45796278062).

78796029778 is a wasteful number, since it uses less digits than its factorization.

78796029778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2958753.

The product of its (nonzero) digits is 149361408, while the sum is 70.

The spelling of 78796029778 in words is "seventy-eight billion, seven hundred ninety-six million, twenty-nine thousand, seven hundred seventy-eight".