2871138825 has 96 divisors (see below), whose sum is σ = 5399654400. Its totient is φ = 1495368000.

The previous prime is 2871138797. The next prime is 2871138827. The reversal of 2871138825 is 5288311782.

It is not a de Polignac number, because 2871138825 - 2²¹ = 2869041673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2871138827) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6661360 + ... + 6661790.

It is an arithmetic number, because the mean of its divisors is an integer number (56246400).

Almost surely, 2^2871138825 is an apocalyptic number.

2871138825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2871138825 is a deficient number, since it is larger than the sum of its proper divisors (2528515575).

2871138825 is a wasteful number, since it uses less digits than its factorization.

2871138825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 649 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 2871138825 is about 53583.0087341127. The cubic root of 2871138825 is about 1421.2966442736.

The spelling of 2871138825 in words is "two billion, eight hundred seventy-one million, one hundred thirty-eight thousand, eight hundred twenty-five".