2646939125 has 16 divisors (see below), whose sum is σ = 3359378880. Its totient is φ = 2081654800.

The previous prime is 2646939103. The next prime is 2646939137. The reversal of 2646939125 is 5219396462.

It is a happy number.

It is not a de Polignac number, because 2646939125 - 2⁸ = 2646938869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2646939125.

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, 172079 + ... + 186828.

It is an arithmetic number, because the mean of its divisors is an integer number (209961180).

Almost surely, 2^2646939125 is an apocalyptic number.

2646939125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2646939125 is a deficient number, since it is larger than the sum of its proper divisors (712439755).

2646939125 is an equidigital number, since it uses as much as digits as its factorization.

2646939125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358981 (or 358971 counting only the distinct ones).

The product of its digits is 699840, while the sum is 47.

The square root of 2646939125 is about 51448.4122689904. The cubic root of 2646939125 is about 1383.2945030309.

The spelling of 2646939125 in words is "two billion, six hundred forty-six million, nine hundred thirty-nine thousand, one hundred twenty-five".