7944146680 has 64 divisors (see below), whose sum is σ = 18271656000. Its totient is φ = 3107420160.

The previous prime is 7944146669. The next prime is 7944146687. The reversal of 7944146680 is 866414497.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7944146687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 653296 + ... + 665344.

It is an arithmetic number, because the mean of its divisors is an integer number (285494625).

Almost surely, 2^7944146680 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 7944146680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9135828000).

7944146680 is an abundant number, since it is smaller than the sum of its proper divisors (10327509320).

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

7944146680 is a wasteful number, since it uses less digits than its factorization.

7944146680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12424 (or 12420 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 7944146680 is about 89129.9426679946. The cubic root of 7944146680 is about 1995.3346825349.

The spelling of 7944146680 in words is "seven billion, nine hundred forty-four million, one hundred forty-six thousand, six hundred eighty".