79506777436868 has 12 divisors (see below), whose sum is σ = 143625146337792. Its totient is φ = 38471021340360.

The previous prime is 79506777436787. The next prime is 79506777436873. The reversal of 79506777436868 is 86863477760597.

It is a happy number.

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, 320591844380 + ... + 320591844627.

It is an arithmetic number, because the mean of its divisors is an integer number (11968762194816).

Almost surely, 2^{79506777436868} is an apocalyptic number.

It is an amenable number.

79506777436868 is a deficient number, since it is larger than the sum of its proper divisors (64118368900924).

79506777436868 is a wasteful number, since it uses less digits than its factorization.

79506777436868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641183689042 (or 641183689040 counting only the distinct ones).

The product of its (nonzero) digits is 17923368960, while the sum is 83.

The spelling of 79506777436868 in words is "seventy-nine trillion, five hundred six billion, seven hundred seventy-seven million, four hundred thirty-six thousand, eight hundred sixty-eight".