7138404430738 has 64 divisors (see below), whose sum is σ = 13068277896960. Its totient is φ = 2859596070912.

The previous prime is 7138404430733. The next prime is 7138404430769. The reversal of 7138404430738 is 8370344048317.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7138404430733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163506 + ... + 3782002.

It is an arithmetic number, because the mean of its divisors is an integer number (204191842140).

Almost surely, 2^{7138404430738} is an apocalyptic number.

7138404430738 is a deficient number, since it is larger than the sum of its proper divisors (5929873466222).

7138404430738 is a wasteful number, since it uses less digits than its factorization.

7138404430738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618691.

The product of its (nonzero) digits is 5419008, while the sum is 52.

The spelling of 7138404430738 in words is "seven trillion, one hundred thirty-eight billion, four hundred four million, four hundred thirty thousand, seven hundred thirty-eight".