2157316700 has 144 divisors (see below), whose sum is σ = 5858625024. Its totient is φ = 669868800.

The previous prime is 2157316607. The next prime is 2157316703. The reversal of 2157316700 is 76137512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157316703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3872822 + ... + 3873378.

It is an arithmetic number, because the mean of its divisors is an integer number (40684896).

Almost surely, 2^2157316700 is an apocalyptic number.

2157316700 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 2157316700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2929312512).

2157316700 is an abundant number, since it is smaller than the sum of its proper divisors (3701308324).

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

2157316700 is a wasteful number, since it uses less digits than its factorization.

2157316700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 2157316700 is about 46446.9234718512. The cubic root of 2157316700 is about 1292.1253149352.

The spelling of 2157316700 in words is "two billion, one hundred fifty-seven million, three hundred sixteen thousand, seven hundred".