477813731922 has 126 divisors (see below), whose sum is σ = 1102780357461. Its totient is φ = 155197743120.

The previous prime is 477813731903. The next prime is 477813731959. The reversal of 477813731922 is 229137318774.

477813731922 is a `hidden beast` number, since 4 + 7 + 7 + 81 + 373 + 192 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 271742221521 + 206071510401 = 521289^2 + 453951^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=488781.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 1134949272 + ... + 1134949692.

Almost surely, 2^477813731922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 477813731922

477813731922 is an abundant number, since it is smaller than the sum of its proper divisors (624966625539).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

477813731922 is an frugal number, since it uses more digits than its factorization.

477813731922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948 (or 469 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The spelling of 477813731922 in words is "four hundred seventy-seven billion, eight hundred thirteen million, seven hundred thirty-one thousand, nine hundred twenty-two".