744142430638 has 16 divisors (see below), whose sum is σ = 1135493522064. Its totient is φ = 365698369600.

The previous prime is 744142430627. The next prime is 744142430659. The reversal of 744142430638 is 836034241447.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13417120 + ... + 13472467.

It is an arithmetic number, because the mean of its divisors is an integer number (70968345129).

Almost surely, 2^744142430638 is an apocalyptic number.

744142430638 is a deficient number, since it is larger than the sum of its proper divisors (391351091426).

744142430638 is a wasteful number, since it uses less digits than its factorization.

744142430638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26889827.

The product of its (nonzero) digits is 1548288, while the sum is 46.

It can be divided in two parts, 74414 and 2430638, that added together give a palindrome (2505052).

The spelling of 744142430638 in words is "seven hundred forty-four billion, one hundred forty-two million, four hundred thirty thousand, six hundred thirty-eight".