25146434344 has 32 divisors (see below), whose sum is σ = 47407500000. Its totient is φ = 12504612672.

The previous prime is 25146434333. The next prime is 25146434371. The reversal of 25146434344 is 44343464152.

It is a junction number, because it is equal to n+sod(n) for n = 25146434297 and 25146434306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1158907 + ... + 1180405.

It is an arithmetic number, because the mean of its divisors is an integer number (1481484375).

Almost surely, 2^25146434344 is an apocalyptic number.

It is an amenable number.

25146434344 is a deficient number, since it is larger than the sum of its proper divisors (22261065656).

25146434344 is a wasteful number, since it uses less digits than its factorization.

25146434344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22297 (or 22293 counting only the distinct ones).

The product of its digits is 552960, while the sum is 40.

Adding to 25146434344 its reverse (44343464152), we get a palindrome (69489898496).

The spelling of 25146434344 in words is "twenty-five billion, one hundred forty-six million, four hundred thirty-four thousand, three hundred forty-four".