2625138877 has 4 divisors (see below), whose sum is σ = 2662112736. Its totient is φ = 2588165020.

The previous prime is 2625138853. The next prime is 2625138907. The reversal of 2625138877 is 7788315262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2625138877 - 2¹⁵ = 2625106109 is a prime.

It is a super-2 number, since 2×2625138877² = 13782708247073642258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2625138877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2625138077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18486823 + ... + 18486964.

It is an arithmetic number, because the mean of its divisors is an integer number (665528184).

Almost surely, 2^2625138877 is an apocalyptic number.

It is an amenable number.

2625138877 is a deficient number, since it is larger than the sum of its proper divisors (36973859).

2625138877 is an equidigital number, since it uses as much as digits as its factorization.

2625138877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36973858.

The product of its digits is 1128960, while the sum is 49.

The square root of 2625138877 is about 51236.1091126171. The cubic root of 2625138877 is about 1379.4864148163.

The spelling of 2625138877 in words is "two billion, six hundred twenty-five million, one hundred thirty-eight thousand, eight hundred seventy-seven".