506458678 has 8 divisors (see below), whose sum is σ = 828750600. Its totient is φ = 230208480.

The previous prime is 506458663. The next prime is 506458703. The reversal of 506458678 is 876854605.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11510403 + ... + 11510446.

It is an arithmetic number, because the mean of its divisors is an integer number (103593825).

Almost surely, 2^506458678 is an apocalyptic number.

506458678 is a deficient number, since it is larger than the sum of its proper divisors (322291922).

506458678 is a wasteful number, since it uses less digits than its factorization.

506458678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23020862.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The square root of 506458678 is about 22504.6368111107. The cubic root of 506458678 is about 797.1034197278.

The spelling of 506458678 in words is "five hundred six million, four hundred fifty-eight thousand, six hundred seventy-eight".