7943620056 has 64 divisors (see below), whose sum is σ = 21115468800. Its totient is φ = 2481658368.

The previous prime is 7943620037. The next prime is 7943620121. The reversal of 7943620056 is 6500263497.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56781 + ... + 138243.

It is an arithmetic number, because the mean of its divisors is an integer number (329929200).

Almost surely, 2^7943620056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7943620056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10557734400).

7943620056 is an abundant number, since it is smaller than the sum of its proper divisors (13171848744).

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

7943620056 is a wasteful number, since it uses less digits than its factorization.

7943620056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81728 (or 81724 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 42.

The square root of 7943620056 is about 89126.9883705267. The cubic root of 7943620056 is about 1995.2905907697.

The spelling of 7943620056 in words is "seven billion, nine hundred forty-three million, six hundred twenty thousand, fifty-six".