7120944638 has 16 divisors (see below), whose sum is σ = 10900035216. Its totient is φ = 3487810560.

The previous prime is 7120944637. The next prime is 7120944641. The reversal of 7120944638 is 8364490217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7120944637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15545 + ... + 120347.

It is an arithmetic number, because the mean of its divisors is an integer number (681252201).

Almost surely, 2^7120944638 is an apocalyptic number.

7120944638 is a deficient number, since it is larger than the sum of its proper divisors (3779090578).

7120944638 is a wasteful number, since it uses less digits than its factorization.

7120944638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105499.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 7120944638 is about 84385.6897702448. The cubic root of 7120944638 is about 1923.8854188027.

The spelling of 7120944638 in words is "seven billion, one hundred twenty million, nine hundred forty-four thousand, six hundred thirty-eight".