7639072974 has 48 divisors (see below), whose sum is σ = 17880905952. Its totient is φ = 2343046464.

The previous prime is 7639072939. The next prime is 7639072999. The reversal of 7639072974 is 4792709367.

It is a self number, because there is not a number n which added to its sum of digits gives 7639072974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22687 + ... + 125669.

It is an arithmetic number, because the mean of its divisors is an integer number (372518874).

Almost surely, 2^7639072974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7639072974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8940452976).

7639072974 is an abundant number, since it is smaller than the sum of its proper divisors (10241832978).

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

7639072974 is a wasteful number, since it uses less digits than its factorization.

7639072974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103321 (or 103318 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 54.

The square root of 7639072974 is about 87401.7904507682. The cubic root of 7639072974 is about 1969.4587374694.

The spelling of 7639072974 in words is "seven billion, six hundred thirty-nine million, seventy-two thousand, nine hundred seventy-four".