2502378891 has 12 divisors (see below), whose sum is σ = 3619448040. Its totient is φ = 1665990720.

The previous prime is 2502378889. The next prime is 2502378911. The reversal of 2502378891 is 1988732052.

It is a happy number.

2502378891 is a `hidden beast` number, since 250 + 237 + 88 + 91 = 666.

It is not a de Polignac number, because 2502378891 - 2¹ = 2502378889 is a prime.

It is a super-2 number, since 2×2502378891² = 12523800228244779762, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2502378811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181470 + ... + 194771.

It is an arithmetic number, because the mean of its divisors is an integer number (301620670).

Almost surely, 2^2502378891 is an apocalyptic number.

2502378891 is a deficient number, since it is larger than the sum of its proper divisors (1117069149).

2502378891 is a wasteful number, since it uses less digits than its factorization.

2502378891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376986 (or 376983 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 2502378891 is about 50023.7832535685. The cubic root of 2502378891 is about 1357.6391587346.

The spelling of 2502378891 in words is "two billion, five hundred two million, three hundred seventy-eight thousand, eight hundred ninety-one".