2931322680 has 192 divisors, whose sum is σ = 11192519520. Its totient is φ = 655948800.

The previous prime is 2931322663. The next prime is 2931322727. The reversal of 2931322680 is 862231392.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23010 + ... + 79950.

Almost surely, 2^2931322680 is an apocalyptic number.

2931322680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2931322680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5596259760).

2931322680 is an abundant number, since it is smaller than the sum of its proper divisors (8261196840).

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

2931322680 is a wasteful number, since it uses less digits than its factorization.

2931322680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56982 (or 56975 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 2931322680 is about 54141.6907752242. The cubic root of 2931322680 is about 1431.1589672020.

The spelling of 2931322680 in words is "two billion, nine hundred thirty-one million, three hundred twenty-two thousand, six hundred eighty".