2127373864 has 64 divisors (see below), whose sum is σ = 5004984960. Its totient is φ = 823530240.

The previous prime is 2127373813. The next prime is 2127373903. The reversal of 2127373864 is 4683737212.

It is a self number, because there is not a number n which added to its sum of digits gives 2127373864.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85714 + ... + 107710.

It is an arithmetic number, because the mean of its divisors is an integer number (78202890).

Almost surely, 2^2127373864 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 2127373864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2502492480).

2127373864 is an abundant number, since it is smaller than the sum of its proper divisors (2877611096).

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

2127373864 is a wasteful number, since it uses less digits than its factorization.

2127373864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22178 (or 22174 counting only the distinct ones).

The product of its digits is 338688, while the sum is 43.

The square root of 2127373864 is about 46123.4632697936. The cubic root of 2127373864 is about 1286.1193522944.

The spelling of 2127373864 in words is "two billion, one hundred twenty-seven million, three hundred seventy-three thousand, eight hundred sixty-four".