76972644627965 has 16 divisors (see below), whose sum is σ = 97376778229248. Its totient is φ = 58293581508096.

The previous prime is 76972644627889. The next prime is 76972644627971. The reversal of 76972644627965 is 56972644627967.

It is a cyclic number.

It is not a de Polignac number, because 76972644627965 - 2¹⁴ = 76972644611581 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 76972644627965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3450129797 + ... + 3450152106.

It is an arithmetic number, because the mean of its divisors is an integer number (6086048639328).

Almost surely, 2^{76972644627965} is an apocalyptic number.

It is an amenable number.

76972644627965 is a deficient number, since it is larger than the sum of its proper divisors (20404133601283).

76972644627965 is a wasteful number, since it uses less digits than its factorization.

76972644627965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6900282028.

The product of its digits is 11522165760, while the sum is 80.

The spelling of 76972644627965 in words is "seventy-six trillion, nine hundred seventy-two billion, six hundred forty-four million, six hundred twenty-seven thousand, nine hundred sixty-five".