76475686021 has 16 divisors (see below), whose sum is σ = 93665712384. Its totient is φ = 61005947904.

The previous prime is 76475686013. The next prime is 76475686043. The reversal of 76475686021 is 12068657467.

It is a cyclic number.

It is not a de Polignac number, because 76475686021 - 2³ = 76475686013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76475686021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76475686051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6413020 + ... + 6424933.

It is an arithmetic number, because the mean of its divisors is an integer number (5854107024).

Almost surely, 2^76475686021 is an apocalyptic number.

It is an amenable number.

76475686021 is a deficient number, since it is larger than the sum of its proper divisors (17190026363).

76475686021 is a wasteful number, since it uses less digits than its factorization.

76475686021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12838020.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 76475686021 in words is "seventy-six billion, four hundred seventy-five million, six hundred eighty-six thousand, twenty-one".