2168749616 has 40 divisors (see below), whose sum is σ = 4626828864. Its totient is φ = 976573760.

The previous prime is 2168749613. The next prime is 2168749621. The reversal of 2168749616 is 6169478612.

It is not an unprimeable number, because it can be changed into a prime (2168749613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38750 + ... + 76413.

Almost surely, 2^2168749616 is an apocalyptic number.

It is an amenable number.

2168749616 is an abundant number, since it is smaller than the sum of its proper divisors (2458079248).

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

2168749616 is a wasteful number, since it uses less digits than its factorization.

2168749616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115289 (or 115283 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 2168749616 is about 46569.8359026527. The cubic root of 2168749616 is about 1294.4038770299.

The spelling of 2168749616 in words is "two billion, one hundred sixty-eight million, seven hundred forty-nine thousand, six hundred sixteen".