7909306972 has 36 divisors (see below), whose sum is σ = 16148168400. Its totient is φ = 3389702988.

The previous prime is 7909306963. The next prime is 7909306973. The reversal of 7909306972 is 2796039097.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7909306973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1129900993 + ... + 1129900999.

Almost surely, 2^7909306972 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 7909306972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8074084200).

7909306972 is an abundant number, since it is smaller than the sum of its proper divisors (8238861428).

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

7909306972 is an frugal number, since it uses more digits than its factorization.

7909306972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 9 counting only the distinct ones).

The product of its (nonzero) digits is 1285956, while the sum is 52.

The square root of 7909306972 is about 88934.2845701251. The cubic root of 7909306972 is about 1992.4135066124.

The spelling of 7909306972 in words is "seven billion, nine hundred nine million, three hundred six thousand, nine hundred seventy-two".