77622974867 has 2 divisors, whose sum is σ = 77622974868. Its totient is φ = 77622974866.

The previous prime is 77622974857. The next prime is 77622974893. The reversal of 77622974867 is 76847922677.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77622974867 - 2¹⁰ = 77622973843 is a prime.

It is not a weakly prime, because it can be changed into another prime (77622974857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38811487433 + 38811487434.

It is an arithmetic number, because the mean of its divisors is an integer number (38811487434).

Almost surely, 2^77622974867 is an apocalyptic number.

77622974867 is a deficient number, since it is larger than the sum of its proper divisors (1).

77622974867 is an equidigital number, since it uses as much as digits as its factorization.

77622974867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 99574272, while the sum is 65.

The spelling of 77622974867 in words is "seventy-seven billion, six hundred twenty-two million, nine hundred seventy-four thousand, eight hundred sixty-seven".