472749777477 has 24 divisors (see below), whose sum is σ = 693481049664. Its totient is φ = 310280652864.

The previous prime is 472749777449. The next prime is 472749777529. The reversal of 472749777477 is 774777947274.

472749777477 is a `hidden beast` number, since 4 + 7 + 27 + 497 + 77 + 47 + 7 = 666.

It is not a de Polignac number, because 472749777477 - 2¹⁰ = 472749776453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472749777377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298353 + ... + 1017110.

It is an arithmetic number, because the mean of its divisors is an integer number (28895043736).

Almost surely, 2^472749777477 is an apocalyptic number.

It is an amenable number.

472749777477 is a deficient number, since it is larger than the sum of its proper divisors (220731272187).

472749777477 is a wasteful number, since it uses less digits than its factorization.

472749777477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316089 (or 1316086 counting only the distinct ones).

The product of its digits is 948721536, while the sum is 72.

The spelling of 472749777477 in words is "four hundred seventy-two billion, seven hundred forty-nine million, seven hundred seventy-seven thousand, four hundred seventy-seven".