2791138625 has 64 divisors (see below), whose sum is σ = 4068320256. Its totient is φ = 1889280000.

The previous prime is 2791138613. The next prime is 2791138639. The reversal of 2791138625 is 5268311972.

It is not a de Polignac number, because 2791138625 - 2⁸ = 2791138369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2266760 + ... + 2267990.

It is an arithmetic number, because the mean of its divisors is an integer number (63567504).

Almost surely, 2^2791138625 is an apocalyptic number.

2791138625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2791138625 is a deficient number, since it is larger than the sum of its proper divisors (1277181631).

2791138625 is a wasteful number, since it uses less digits than its factorization.

2791138625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371 (or 1361 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 2791138625 is about 52831.2277445830. The cubic root of 2791138625 is about 1407.9712999447.

The spelling of 2791138625 in words is "two billion, seven hundred ninety-one million, one hundred thirty-eight thousand, six hundred twenty-five".