2168070772 has 48 divisors (see below), whose sum is σ = 4587520000. Its totient is φ = 875803104.

The previous prime is 2168070757. The next prime is 2168070799. The reversal of 2168070772 is 2770708612.

It is a congruent number.

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, 95629 + ... + 116107.

Almost surely, 2^2168070772 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 2168070772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2293760000).

2168070772 is an abundant number, since it is smaller than the sum of its proper divisors (2419449228).

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

2168070772 is a wasteful number, since it uses less digits than its factorization.

2168070772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20708 (or 20706 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 2168070772 is about 46562.5468805133. The cubic root of 2168070772 is about 1294.2688084177.

The spelling of 2168070772 in words is "two billion, one hundred sixty-eight million, seventy thousand, seven hundred seventy-two".