76381076661 has 8 divisors (see below), whose sum is σ = 102490107744. Its totient is φ = 50596381680.

The previous prime is 76381076657. The next prime is 76381076663. The reversal of 76381076661 is 16667018367.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 76381076661 - 2² = 76381076657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76381076663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81083475 + ... + 81084416.

It is an arithmetic number, because the mean of its divisors is an integer number (12811263468).

Almost surely, 2^76381076661 is an apocalyptic number.

It is an amenable number.

76381076661 is a deficient number, since it is larger than the sum of its proper divisors (26109031083).

76381076661 is a wasteful number, since it uses less digits than its factorization.

76381076661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162168051.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 76381076661 in words is "seventy-six billion, three hundred eighty-one million, seventy-six thousand, six hundred sixty-one".