477990508278 has 32 divisors (see below), whose sum is σ = 964018014336. Its totient is φ = 157995085248.

The previous prime is 477990508267. The next prime is 477990508339. The reversal of 477990508278 is 872805099774.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118375 + ... + 984882.

It is an arithmetic number, because the mean of its divisors is an integer number (30125562948).

Almost surely, 2^477990508278 is an apocalyptic number.

477990508278 is an abundant number, since it is smaller than the sum of its proper divisors (486027506058).

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

477990508278 is a wasteful number, since it uses less digits than its factorization.

477990508278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103868.

The product of its (nonzero) digits is 71124480, while the sum is 66.

The spelling of 477990508278 in words is "four hundred seventy-seven billion, nine hundred ninety million, five hundred eight thousand, two hundred seventy-eight".