15742757137 has 4 divisors (see below), whose sum is σ = 15747503680. Its totient is φ = 15738010596.

The previous prime is 15742757089. The next prime is 15742757161. The reversal of 15742757137 is 73175724751.

15742757137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15742757137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15742767137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2368293 + ... + 2374930.

It is an arithmetic number, because the mean of its divisors is an integer number (3936875920).

Almost surely, 2^15742757137 is an apocalyptic number.

It is an amenable number.

15742757137 is a deficient number, since it is larger than the sum of its proper divisors (4746543).

15742757137 is an equidigital number, since it uses as much as digits as its factorization.

15742757137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4746542.

The product of its digits is 1440600, while the sum is 49.

The spelling of 15742757137 in words is "fifteen billion, seven hundred forty-two million, seven hundred fifty-seven thousand, one hundred thirty-seven".