478506697786 has 16 divisors (see below), whose sum is σ = 775199958624. Its totient is φ = 220212787824.

The previous prime is 478506697763. The next prime is 478506697789. The reversal of 478506697786 is 687796605874.

It is not an unprimeable number, because it can be changed into a prime (478506697789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26509860 + ... + 26527903.

It is an arithmetic number, because the mean of its divisors is an integer number (48449997414).

Almost surely, 2^478506697786 is an apocalyptic number.

478506697786 is a deficient number, since it is larger than the sum of its proper divisors (296693260838).

478506697786 is a wasteful number, since it uses less digits than its factorization.

478506697786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53038125.

The product of its (nonzero) digits is 853493760, while the sum is 73.

The spelling of 478506697786 in words is "four hundred seventy-eight billion, five hundred six million, six hundred ninety-seven thousand, seven hundred eighty-six".