7073737638 has 64 divisors (see below), whose sum is σ = 16356515328. Its totient is φ = 2015608320.

The previous prime is 7073737543. The next prime is 7073737651. The reversal of 7073737638 is 8367373707.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1621356 + ... + 1625712.

It is an arithmetic number, because the mean of its divisors is an integer number (255570552).

Almost surely, 2^7073737638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7073737638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8178257664).

7073737638 is an abundant number, since it is smaller than the sum of its proper divisors (9282777690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7073737638 is a wasteful number, since it uses less digits than its factorization.

7073737638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5837.

The product of its (nonzero) digits is 3111696, while the sum is 51.

The square root of 7073737638 is about 84105.5149083578. The cubic root of 7073737638 is about 1919.6246407064.

The spelling of 7073737638 in words is "seven billion, seventy-three million, seven hundred thirty-seven thousand, six hundred thirty-eight".