15712125442 has 8 divisors (see below), whose sum is σ = 25381125756. Its totient is φ = 7251750192.

The previous prime is 15712125431. The next prime is 15712125469. The reversal of 15712125442 is 24452121751.

It can be written as a sum of positive squares in 2 ways, for example, as 14347487961 + 1364637481 = 119781^2 + 36941^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 15712125398 and 15712125407.

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, 302156233 + ... + 302156284.

Almost surely, 2^15712125442 is an apocalyptic number.

15712125442 is a deficient number, since it is larger than the sum of its proper divisors (9669000314).

15712125442 is a wasteful number, since it uses less digits than its factorization.

15712125442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604312532.

The product of its digits is 22400, while the sum is 34.

The spelling of 15712125442 in words is "fifteen billion, seven hundred twelve million, one hundred twenty-five thousand, four hundred forty-two".