79778396373 has 48 divisors (see below), whose sum is σ = 121372392960. Its totient is φ = 46461729600.

The previous prime is 79778396339. The next prime is 79778396377. The reversal of 79778396373 is 37369387797.

It is not a de Polignac number, because 79778396373 - 2¹³ = 79778388181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79778396298 and 79778396307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79778396377) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10505808 + ... + 10513398.

It is an arithmetic number, because the mean of its divisors is an integer number (2528591520).

Almost surely, 2^79778396373 is an apocalyptic number.

It is an amenable number.

79778396373 is a deficient number, since it is larger than the sum of its proper divisors (41593996587).

79778396373 is a wasteful number, since it uses less digits than its factorization.

79778396373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8730 (or 8717 counting only the distinct ones).

The product of its digits is 252047376, while the sum is 69.

The spelling of 79778396373 in words is "seventy-nine billion, seven hundred seventy-eight million, three hundred ninety-six thousand, three hundred seventy-three".