477736668 has 36 divisors (see below), whose sum is σ = 1209127920. Its totient is φ = 159045696.

The previous prime is 477736667. The next prime is 477736687. The reversal of 477736668 is 866637774.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477736661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22296 + ... + 38112.

Almost surely, 2^477736668 is an apocalyptic number.

It is an amenable number.

477736668 is an abundant number, since it is smaller than the sum of its proper divisors (731391252).

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

477736668 is a wasteful number, since it uses less digits than its factorization.

477736668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16666 (or 16661 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 54.

The square root of 477736668 is about 21857.1880167601. The cubic root of 477736668 is about 781.7409437062.

The spelling of 477736668 in words is "four hundred seventy-seven million, seven hundred thirty-six thousand, six hundred sixty-eight".