25943198472 has 24 divisors (see below), whose sum is σ = 70262829390. Its totient is φ = 8647732800.

The previous prime is 25943198459. The next prime is 25943198497. The reversal of 25943198472 is 27489134952.

25943198472 is a `hidden beast` number, since 2 + 59 + 4 + 31 + 98 + 472 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25931949156 + 11249316 = 161034^2 + 3354^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180161029 + ... + 180161172.

Almost surely, 2^25943198472 is an apocalyptic number.

It is an amenable number.

25943198472 is an abundant number, since it is smaller than the sum of its proper divisors (44319630918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25943198472 is a wasteful number, since it uses less digits than its factorization.

25943198472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360322213 (or 360322206 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 25943198472 in words is "twenty-five billion, nine hundred forty-three million, one hundred ninety-eight thousand, four hundred seventy-two".