25197436412 has 6 divisors (see below), whose sum is σ = 44095513728. Its totient is φ = 12598718204.

The previous prime is 25197436403. The next prime is 25197436423. The reversal of 25197436412 is 21463479152.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3149679548 + ... + 3149679555.

It is an arithmetic number, because the mean of its divisors is an integer number (7349252288).

Almost surely, 2^25197436412 is an apocalyptic number.

It is an amenable number.

25197436412 is a deficient number, since it is larger than the sum of its proper divisors (18898077316).

25197436412 is a wasteful number, since it uses less digits than its factorization.

25197436412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6299359107 (or 6299359105 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The spelling of 25197436412 in words is "twenty-five billion, one hundred ninety-seven million, four hundred thirty-six thousand, four hundred twelve".