477661747215 has 8 divisors (see below), whose sum is σ = 764258795568. Its totient is φ = 254752931840.

The previous prime is 477661747201. The next prime is 477661747231. The reversal of 477661747215 is 512747166774.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 477661747215 - 2⁶ = 477661747151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15922058226 + ... + 15922058255.

It is an arithmetic number, because the mean of its divisors is an integer number (95532349446).

Almost surely, 2^477661747215 is an apocalyptic number.

477661747215 is a deficient number, since it is larger than the sum of its proper divisors (286597048353).

477661747215 is a wasteful number, since it uses less digits than its factorization.

477661747215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31844116489.

The product of its digits is 13829760, while the sum is 57.

The spelling of 477661747215 in words is "four hundred seventy-seven billion, six hundred sixty-one million, seven hundred forty-seven thousand, two hundred fifteen".