15142738944319 has 4 divisors (see below), whose sum is σ = 17305987364944. Its totient is φ = 12979490523696.

The previous prime is 15142738944299. The next prime is 15142738944329. The reversal of 15142738944319 is 91344983724151.

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

It is a cyclic number.

It is not a de Polignac number, because 15142738944319 - 2⁵ = 15142738944287 is a prime.

It is a super-2 number, since 2×15142738944319² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15142738944329) 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, 1081624210302 + ... + 1081624210315.

It is an arithmetic number, because the mean of its divisors is an integer number (4326496841236).

Almost surely, 2^{15142738944319} is an apocalyptic number.

15142738944319 is a deficient number, since it is larger than the sum of its proper divisors (2163248420625).

15142738944319 is an equidigital number, since it uses as much as digits as its factorization.

15142738944319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163248420624.

The product of its digits is 26127360, while the sum is 61.

The spelling of 15142738944319 in words is "fifteen trillion, one hundred forty-two billion, seven hundred thirty-eight million, nine hundred forty-four thousand, three hundred nineteen".