76790388599 has 6 divisors (see below), whose sum is σ = 77874311304. Its totient is φ = 75706531740.

The previous prime is 76790388551. The next prime is 76790388617. The reversal of 76790388599 is 99588309767.

It is a de Polignac number, because none of the positive numbers 2^k-76790388599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76790888599) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2318534 + ... + 2351420.

It is an arithmetic number, because the mean of its divisors is an integer number (12979051884).

Almost surely, 2^76790388599 is an apocalyptic number.

76790388599 is a deficient number, since it is larger than the sum of its proper divisors (1083922705).

76790388599 is an frugal number, since it uses more digits than its factorization.

76790388599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65845 (or 32958 counting only the distinct ones).

The product of its (nonzero) digits is 205752960, while the sum is 71.

Multiplying 76790388599 by its sum of digits (71), we get a square (5452117590529 = 2334977²).

76790388599 divided by its sum of digits (71) gives a square (1081554769 = 32887²).

The spelling of 76790388599 in words is "seventy-six billion, seven hundred ninety million, three hundred eighty-eight thousand, five hundred ninety-nine".