475913328139 has 4 divisors (see below), whose sum is σ = 479546254440. Its totient is φ = 472280401840.

The previous prime is 475913328103. The next prime is 475913328167. The reversal of 475913328139 is 931823319574.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475913328139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 475913328139.

It is not an unprimeable number, because it can be changed into a prime (475913328739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1816462954 + ... + 1816463215.

It is an arithmetic number, because the mean of its divisors is an integer number (119886563610).

Almost surely, 2^475913328139 is an apocalyptic number.

475913328139 is a deficient number, since it is larger than the sum of its proper divisors (3632926301).

475913328139 is a wasteful number, since it uses less digits than its factorization.

475913328139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632926300.

The product of its digits is 4898880, while the sum is 55.

The spelling of 475913328139 in words is "four hundred seventy-five billion, nine hundred thirteen million, three hundred twenty-eight thousand, one hundred thirty-nine".