2653891539 has 32 divisors (see below), whose sum is σ = 4039398720. Its totient is φ = 1535373312.

The previous prime is 2653891459. The next prime is 2653891543. The reversal of 2653891539 is 9351983562.

It is not a de Polignac number, because 2653891539 - 2⁸ = 2653891283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 2653891491 and 2653891500.

It is not an unprimeable number, because it can be changed into a prime (2653891549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 813199 + ... + 816455.

It is an arithmetic number, because the mean of its divisors is an integer number (126231210).

Almost surely, 2^2653891539 is an apocalyptic number.

2653891539 is a deficient number, since it is larger than the sum of its proper divisors (1385507181).

2653891539 is a wasteful number, since it uses less digits than its factorization.

2653891539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4519.

The product of its digits is 1749600, while the sum is 51.

The square root of 2653891539 is about 51515.9348066208. The cubic root of 2653891539 is about 1384.5045583330.

The spelling of 2653891539 in words is "two billion, six hundred fifty-three million, eight hundred ninety-one thousand, five hundred thirty-nine".