76672655489 has 2 divisors, whose sum is σ = 76672655490. Its totient is φ = 76672655488.

The previous prime is 76672655453. The next prime is 76672655567. The reversal of 76672655489 is 98455627667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50756485264 + 25916170225 = 225292^2 + 160985^2 .

It is an emirp because it is prime and its reverse (98455627667) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76672655489 - 2¹⁶ = 76672589953 is a prime.

It is not a weakly prime, because it can be changed into another prime (76672655789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38336327744 + 38336327745.

It is an arithmetic number, because the mean of its divisors is an integer number (38336327745).

Almost surely, 2^76672655489 is an apocalyptic number.

It is an amenable number.

76672655489 is a deficient number, since it is larger than the sum of its proper divisors (1).

76672655489 is an equidigital number, since it uses as much as digits as its factorization.

76672655489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 152409600, while the sum is 65.

The spelling of 76672655489 in words is "seventy-six billion, six hundred seventy-two million, six hundred fifty-five thousand, four hundred eighty-nine".