76620860671 has 2 divisors, whose sum is σ = 76620860672. Its totient is φ = 76620860670.

The previous prime is 76620860669. The next prime is 76620860699. The reversal of 76620860671 is 17606802667.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76620860671 - 2¹ = 76620860669 is a prime.

Together with 76620860669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76620860471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38310430335 + 38310430336.

It is an arithmetic number, because the mean of its divisors is an integer number (38310430336).

Almost surely, 2^76620860671 is an apocalyptic number.

76620860671 is a deficient number, since it is larger than the sum of its proper divisors (1).

76620860671 is an equidigital number, since it uses as much as digits as its factorization.

76620860671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 76620860671 in words is "seventy-six billion, six hundred twenty million, eight hundred sixty thousand, six hundred seventy-one".