2635142539 has 12 divisors (see below), whose sum is σ = 2684210400. Its totient is φ = 2586919104.

The previous prime is 2635142519. The next prime is 2635142581. The reversal of 2635142539 is 9352415362.

It is not a de Polignac number, because 2635142539 - 2¹³ = 2635134347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2635142519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1272597 + ... + 1274665.

It is an arithmetic number, because the mean of its divisors is an integer number (223684200).

Almost surely, 2^2635142539 is an apocalyptic number.

2635142539 is a deficient number, since it is larger than the sum of its proper divisors (49067861).

2635142539 is an equidigital number, since it uses as much as digits as its factorization.

2635142539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2454 (or 2381 counting only the distinct ones).

The product of its digits is 194400, while the sum is 40.

The square root of 2635142539 is about 51333.6394482215. The cubic root of 2635142539 is about 1381.2364712638.

The spelling of 2635142539 in words is "two billion, six hundred thirty-five million, one hundred forty-two thousand, five hundred thirty-nine".