15475338123 has 24 divisors (see below), whose sum is σ = 24054069312. Its totient is φ = 8824075344.

The previous prime is 15475338113. The next prime is 15475338143. The reversal of 15475338123 is 32183357451.

It is a de Polignac number, because none of the positive numbers 2^k-15475338123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15475338113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44065 + ... + 181362.

It is an arithmetic number, because the mean of its divisors is an integer number (1002252888).

Almost surely, 2^15475338123 is an apocalyptic number.

15475338123 is a deficient number, since it is larger than the sum of its proper divisors (8578731189).

15475338123 is a wasteful number, since it uses less digits than its factorization.

15475338123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225911 (or 225904 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The spelling of 15475338123 in words is "fifteen billion, four hundred seventy-five million, three hundred thirty-eight thousand, one hundred twenty-three".