25317871489 has 8 divisors (see below), whose sum is σ = 26011097280. Its totient is φ = 24625117296.

The previous prime is 25317871457. The next prime is 25317871511. The reversal of 25317871489 is 98417871352.

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 25317871489 - 2⁵ = 25317871457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25317874489) 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, 7669 + ... + 225154.

It is an arithmetic number, because the mean of its divisors is an integer number (3251387160).

Almost surely, 2^25317871489 is an apocalyptic number.

It is an amenable number.

25317871489 is a deficient number, since it is larger than the sum of its proper divisors (693225791).

25317871489 is a wasteful number, since it uses less digits than its factorization.

25317871489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235799.

The product of its digits is 3386880, while the sum is 55.

The spelling of 25317871489 in words is "twenty-five billion, three hundred seventeen million, eight hundred seventy-one thousand, four hundred eighty-nine".