2169519968 has 48 divisors (see below), whose sum is σ = 5325191424. Its totient is φ = 845266560.

The previous prime is 2169519941. The next prime is 2169520019. The reversal of 2169519968 is 8699159612.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437780 + ... + 442707.

It is an arithmetic number, because the mean of its divisors is an integer number (110941488).

Almost surely, 2^2169519968 is an apocalyptic number.

2169519968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2169519968 is an abundant number, since it is smaller than the sum of its proper divisors (3155671456).

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

2169519968 is a wasteful number, since it uses less digits than its factorization.

2169519968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880515 (or 880507 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 56.

The square root of 2169519968 is about 46578.1061014722. The cubic root of 2169519968 is about 1294.5571187208.

The spelling of 2169519968 in words is "two billion, one hundred sixty-nine million, five hundred nineteen thousand, nine hundred sixty-eight".