25194865941 has 64 divisors (see below), whose sum is σ = 44098928640. Its totient is φ = 13912119360.

The previous prime is 25194865933. The next prime is 25194865981. The reversal of 25194865941 is 14956849152.

25194865941 is a `hidden beast` number, since 2 + 5 + 1 + 9 + 48 + 6 + 594 + 1 = 666.

It is not a de Polignac number, because 25194865941 - 2³ = 25194865933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25194865901) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4526226 + ... + 4531788.

It is an arithmetic number, because the mean of its divisors is an integer number (689045760).

Almost surely, 2^25194865941 is an apocalyptic number.

25194865941 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25194865941 is a deficient number, since it is larger than the sum of its proper divisors (18904062699).

25194865941 is a wasteful number, since it uses less digits than its factorization.

25194865941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6383 (or 6377 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The spelling of 25194865941 in words is "twenty-five billion, one hundred ninety-four million, eight hundred sixty-five thousand, nine hundred forty-one".