25391446923 has 16 divisors (see below), whose sum is σ = 35439593472. Its totient is φ = 16150848000.

The previous prime is 25391446907. The next prime is 25391446957. The reversal of 25391446923 is 32964419352.

It is not a de Polignac number, because 25391446923 - 2⁴ = 25391446907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25391446963) 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, 1916118 + ... + 1929323.

It is an arithmetic number, because the mean of its divisors is an integer number (2214974592).

Almost surely, 2^25391446923 is an apocalyptic number.

25391446923 is a deficient number, since it is larger than the sum of its proper divisors (10048146549).

25391446923 is a wasteful number, since it uses less digits than its factorization.

25391446923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3845546.

The product of its digits is 1399680, while the sum is 48.

The spelling of 25391446923 in words is "twenty-five billion, three hundred ninety-one million, four hundred forty-six thousand, nine hundred twenty-three".