5178137923 has 8 divisors (see below), whose sum is σ = 5922620000. Its totient is φ = 4434842880.

The previous prime is 5178137903. The next prime is 5178137941. The reversal of 5178137923 is 3297318715.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5178137923 is a prime.

It is a super-2 number, since 2×5178137923² = 53626224699221507858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5178137903) 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, 287388 + ... + 304873.

It is an arithmetic number, because the mean of its divisors is an integer number (740327500).

Almost surely, 2^5178137923 is an apocalyptic number.

5178137923 is a deficient number, since it is larger than the sum of its proper divisors (744482077).

5178137923 is a wasteful number, since it uses less digits than its factorization.

5178137923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593517.

The product of its digits is 317520, while the sum is 46.

The square root of 5178137923 is about 71959.2796170167. The cubic root of 5178137923 is about 1730.0468789016.

The spelling of 5178137923 in words is "five billion, one hundred seventy-eight million, one hundred thirty-seven thousand, nine hundred twenty-three".