25339744139 has 8 divisors (see below), whose sum is σ = 25504461312. Its totient is φ = 25175140200.

The previous prime is 25339744121. The next prime is 25339744169. The reversal of 25339744139 is 93144793352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25339744139 - 2³² = 21044776843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25339744169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446414 + ... + 499964.

It is an arithmetic number, because the mean of its divisors is an integer number (3188057664).

Almost surely, 2^25339744139 is an apocalyptic number.

25339744139 is a deficient number, since it is larger than the sum of its proper divisors (164717173).

25339744139 is a wasteful number, since it uses less digits than its factorization.

25339744139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56617.

The product of its digits is 2449440, while the sum is 50.

The spelling of 25339744139 in words is "twenty-five billion, three hundred thirty-nine million, seven hundred forty-four thousand, one hundred thirty-nine".