76809607845 has 32 divisors (see below), whose sum is σ = 123527783808. Its totient is φ = 40754853888.

The previous prime is 76809607837. The next prime is 76809607943. The reversal of 76809607845 is 54870690867.

It is not a de Polignac number, because 76809607845 - 2³ = 76809607837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2344417 + ... + 2376953.

It is an arithmetic number, because the mean of its divisors is an integer number (3860243244).

Almost surely, 2^76809607845 is an apocalyptic number.

It is an amenable number.

76809607845 is a deficient number, since it is larger than the sum of its proper divisors (46718175963).

76809607845 is a wasteful number, since it uses less digits than its factorization.

76809607845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33349.

The product of its (nonzero) digits is 20321280, while the sum is 60.

The spelling of 76809607845 in words is "seventy-six billion, eight hundred nine million, six hundred seven thousand, eight hundred forty-five".