1439172498742 has 32 divisors (see below), whose sum is σ = 2417615351424. Its totient is φ = 636847156800.

The previous prime is 1439172498737. The next prime is 1439172498749. The reversal of 1439172498742 is 2478942719341.

It is a happy number.

It is a super-2 number, since 2×1439172498742² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1439172498749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1287048 + ... + 2129515.

It is an arithmetic number, because the mean of its divisors is an integer number (75550479732).

Almost surely, 2^{1439172498742} is an apocalyptic number.

1439172498742 is a deficient number, since it is larger than the sum of its proper divisors (978442852682).

1439172498742 is a wasteful number, since it uses less digits than its factorization.

1439172498742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417084.

The product of its digits is 24385536, while the sum is 61.

The spelling of 1439172498742 in words is "one trillion, four hundred thirty-nine billion, one hundred seventy-two million, four hundred ninety-eight thousand, seven hundred forty-two".