477775881 has 96 divisors (see below), whose sum is σ = 842688000. Its totient is φ = 266444640.

The previous prime is 477775877. The next prime is 477775891. The reversal of 477775881 is 188577774.

It is not a de Polignac number, because 477775881 - 2² = 477775877 is a prime.

It is a super-2 number, since 2×477775881² = 456539584930652322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (477775891) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2669050 + ... + 2669228.

It is an arithmetic number, because the mean of its divisors is an integer number (8778000).

Almost surely, 2^477775881 is an apocalyptic number.

It is an amenable number.

477775881 is a deficient number, since it is larger than the sum of its proper divisors (364912119).

477775881 is a wasteful number, since it uses less digits than its factorization.

477775881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 255 counting only the distinct ones).

The product of its digits is 3073280, while the sum is 54.

The square root of 477775881 is about 21858.0850259120. The cubic root of 477775881 is about 781.7623317574.

The spelling of 477775881 in words is "four hundred seventy-seven million, seven hundred seventy-five thousand, eight hundred eighty-one".