76914750521 has 4 divisors (see below), whose sum is σ = 87902572032. Its totient is φ = 65926929012.

The previous prime is 76914750499. The next prime is 76914750541. The reversal of 76914750521 is 12505741967.

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 de Polignac number, because none of the positive numbers 2^k-76914750521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76914750541) 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, 5493910745 + ... + 5493910758.

It is an arithmetic number, because the mean of its divisors is an integer number (21975643008).

Almost surely, 2^76914750521 is an apocalyptic number.

It is an amenable number.

76914750521 is a deficient number, since it is larger than the sum of its proper divisors (10987821511).

76914750521 is a wasteful number, since it uses less digits than its factorization.

76914750521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10987821510.

The product of its (nonzero) digits is 529200, while the sum is 47.

The spelling of 76914750521 in words is "seventy-six billion, nine hundred fourteen million, seven hundred fifty thousand, five hundred twenty-one".