25443361196 has 54 divisors (see below), whose sum is σ = 49210096572. Its totient is φ = 11415591840.

The previous prime is 25443361193. The next prime is 25443361211. The reversal of 25443361196 is 69116334452.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (25443361193) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 147071366 + ... + 147071538.

Almost surely, 2^25443361196 is an apocalyptic number.

It is an amenable number.

25443361196 is a deficient number, since it is larger than the sum of its proper divisors (23766735376).

25443361196 is a wasteful number, since it uses less digits than its factorization.

25443361196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 325 counting only the distinct ones).

The product of its digits is 466560, while the sum is 44.

Multiplying 25443361196 by its sum of digits (44), we get a square (1119507892624 = 1058068²).

25443361196 divided by its sum of digits (44) gives a square (578258209 = 24047²).

The spelling of 25443361196 in words is "twenty-five billion, four hundred forty-three million, three hundred sixty-one thousand, one hundred ninety-six".