76076774721 has 24 divisors (see below), whose sum is σ = 113971507104. Its totient is φ = 50712117120.

The previous prime is 76076774639. The next prime is 76076774729. The reversal of 76076774721 is 12747767067.

It is a happy number.

76076774721 is a `hidden beast` number, since 7 + 607 + 6 + 7 + 7 + 4 + 7 + 21 = 666.

It is not a de Polignac number, because 76076774721 - 2¹⁰ = 76076773697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76076774729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4274481 + ... + 4292241.

It is an arithmetic number, because the mean of its divisors is an integer number (4748812796).

Almost surely, 2^76076774721 is an apocalyptic number.

It is an amenable number.

76076774721 is a deficient number, since it is larger than the sum of its proper divisors (37894732383).

76076774721 is a wasteful number, since it uses less digits than its factorization.

76076774721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35403 (or 35391 counting only the distinct ones).

The product of its (nonzero) digits is 4840416, while the sum is 54.

The spelling of 76076774721 in words is "seventy-six billion, seventy-six million, seven hundred seventy-four thousand, seven hundred twenty-one".