76874707309 has 4 divisors (see below), whose sum is σ = 76881529504. Its totient is φ = 76867885116.

The previous prime is 76874707241. The next prime is 76874707331. The reversal of 76874707309 is 90370747867.

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 a de Polignac number, because none of the positive numbers 2^k-76874707309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76874707379) 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, 3394167 + ... + 3416740.

It is an arithmetic number, because the mean of its divisors is an integer number (19220382376).

Almost surely, 2^76874707309 is an apocalyptic number.

It is an amenable number.

76874707309 is a deficient number, since it is larger than the sum of its proper divisors (6822195).

76874707309 is a wasteful number, since it uses less digits than its factorization.

76874707309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6822194.

The product of its (nonzero) digits is 12446784, while the sum is 58.

The spelling of 76874707309 in words is "seventy-six billion, eight hundred seventy-four million, seven hundred seven thousand, three hundred nine".