25443631412 has 48 divisors (see below), whose sum is σ = 46938864000. Its totient is φ = 12044419200.

The previous prime is 25443631363. The next prime is 25443631453. The reversal of 25443631412 is 21413634452.

It is a super-2 number, since 2×25443631412² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4460162 + ... + 4465862.

It is an arithmetic number, because the mean of its divisors is an integer number (977893000).

Almost surely, 2^25443631412 is an apocalyptic number.

It is an amenable number.

25443631412 is a deficient number, since it is larger than the sum of its proper divisors (21495232588).

25443631412 is a wasteful number, since it uses less digits than its factorization.

25443631412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6216 (or 6214 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The spelling of 25443631412 in words is "twenty-five billion, four hundred forty-three million, six hundred thirty-one thousand, four hundred twelve".