76432773817 has 4 divisors (see below), whose sum is σ = 79755937920. Its totient is φ = 73109609716.

The previous prime is 76432773797. The next prime is 76432773853. The reversal of 76432773817 is 71837723467.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76432773817 - 2¹¹ = 76432771769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76432773017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661582017 + ... + 1661582062.

It is an arithmetic number, because the mean of its divisors is an integer number (19938984480).

Almost surely, 2^76432773817 is an apocalyptic number.

It is an amenable number.

76432773817 is a deficient number, since it is larger than the sum of its proper divisors (3323164103).

76432773817 is a wasteful number, since it uses less digits than its factorization.

76432773817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323164102.

The product of its digits is 8297856, while the sum is 55.

The spelling of 76432773817 in words is "seventy-six billion, four hundred thirty-two million, seven hundred seventy-three thousand, eight hundred seventeen".