672277772277 has 64 divisors (see below), whose sum is σ = 1028969472000. Its totient is φ = 433485794880.

The previous prime is 672277772269. The next prime is 672277772279. The reversal of 672277772277 is 772277772276.

672277772277 is a `hidden beast` number, since 6 + 7 + 227 + 77 + 72 + 277 = 666.

It is not a de Polignac number, because 672277772277 - 2³ = 672277772269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672277772279) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 131842474 + ... + 131847572.

It is an arithmetic number, because the mean of its divisors is an integer number (16077648000).

Almost surely, 2^672277772277 is an apocalyptic number.

It is an amenable number.

672277772277 is a deficient number, since it is larger than the sum of its proper divisors (356691699723).

672277772277 is a wasteful number, since it uses less digits than its factorization.

672277772277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5903 (or 5897 counting only the distinct ones).

The product of its digits is 79060128, while the sum is 63.

Subtracting 672277772277 from its reverse (772277772276), we obtain a palindrome (99999999999).

The spelling of 672277772277 in words is "six hundred seventy-two billion, two hundred seventy-seven million, seven hundred seventy-two thousand, two hundred seventy-seven".