25158389793 has 16 divisors (see below), whose sum is σ = 33928551360. Its totient is φ = 16580323584.

The previous prime is 25158389779. The next prime is 25158389827. The reversal of 25158389793 is 39798385152.

It is not a de Polignac number, because 25158389793 - 2³³ = 16568455201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25158389293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2120205 + ... + 2132037.

It is an arithmetic number, because the mean of its divisors is an integer number (2120534460).

Almost surely, 2^25158389793 is an apocalyptic number.

It is an amenable number.

25158389793 is a deficient number, since it is larger than the sum of its proper divisors (8770161567).

25158389793 is a wasteful number, since it uses less digits than its factorization.

25158389793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19888.

The product of its digits is 16329600, while the sum is 60.

The spelling of 25158389793 in words is "twenty-five billion, one hundred fifty-eight million, three hundred eighty-nine thousand, seven hundred ninety-three".