76710767221 has 16 divisors (see below), whose sum is σ = 85135408128. Its totient is φ = 68530075200.

The previous prime is 76710767209. The next prime is 76710767239. The reversal of 76710767221 is 12276701767.

It is a cyclic number.

It is not a de Polignac number, because 76710767221 - 2²⁵ = 76677212789 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 (76710767261) 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 15 ways as a sum of consecutive naturals, for example, 676791 + ... + 781963.

It is an arithmetic number, because the mean of its divisors is an integer number (5320963008).

Almost surely, 2^76710767221 is an apocalyptic number.

It is an amenable number.

76710767221 is a deficient number, since it is larger than the sum of its proper divisors (8424640907).

76710767221 is a wasteful number, since it uses less digits than its factorization.

76710767221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106332.

The product of its (nonzero) digits is 345744, while the sum is 46.

The spelling of 76710767221 in words is "seventy-six billion, seven hundred ten million, seven hundred sixty-seven thousand, two hundred twenty-one".