2634019139 has 4 divisors (see below), whose sum is σ = 2634168600. Its totient is φ = 2633869680.

The previous prime is 2634019127. The next prime is 2634019147. The reversal of 2634019139 is 9319104362.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2634019139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2634019939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44114 + ... + 84935.

It is an arithmetic number, because the mean of its divisors is an integer number (658542150).

Almost surely, 2^2634019139 is an apocalyptic number.

2634019139 is a deficient number, since it is larger than the sum of its proper divisors (149461).

2634019139 is a wasteful number, since it uses less digits than its factorization.

2634019139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149460.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 2634019139 is about 51322.6961392326. The cubic root of 2634019139 is about 1381.0401628943.

The spelling of 2634019139 in words is "two billion, six hundred thirty-four million, nineteen thousand, one hundred thirty-nine".