672102256077 has 60 divisors (see below), whose sum is σ = 1168491036636. Its totient is φ = 383871882240.

The previous prime is 672102256061. The next prime is 672102256097. The reversal of 672102256077 is 770652201276.

672102256077 is a `hidden beast` number, since 6 + 7 + 2 + 10 + 2 + 2 + 560 + 77 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 76212436356 + 595889819721 = 276066^2 + 771939^2 .

It is not a de Polignac number, because 672102256077 - 2⁴ = 672102256061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672102256097) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 8346427 + ... + 8426567.

Almost surely, 2^672102256077 is an apocalyptic number.

It is an amenable number.

672102256077 is a deficient number, since it is larger than the sum of its proper divisors (496388780559).

672102256077 is a wasteful number, since it uses less digits than its factorization.

672102256077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82280 (or 82264 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 672102256077 in words is "six hundred seventy-two billion, one hundred two million, two hundred fifty-six thousand, seventy-seven".