25194116791197 has 16 divisors (see below), whose sum is σ = 37325210138880. Its totient is φ = 16795811159136.

The previous prime is 25194116791189. The next prime is 25194116791211. The reversal of 25194116791197 is 79119761149152.

25194116791197 is a `hidden beast` number, since 2 + 51 + 9 + 411 + 6 + 79 + 11 + 97 = 666.

It is not a de Polignac number, because 25194116791197 - 2³ = 25194116791189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25194116691197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5669088 + ... + 9084425.

It is an arithmetic number, because the mean of its divisors is an integer number (2332825633680).

Almost surely, 2^{25194116791197} is an apocalyptic number.

25194116791197 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

25194116791197 is a deficient number, since it is larger than the sum of its proper divisors (12131093347683).

25194116791197 is a wasteful number, since it uses less digits than its factorization.

25194116791197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14816769 (or 14816763 counting only the distinct ones).

The product of its digits is 8573040, while the sum is 63.

The spelling of 25194116791197 in words is "twenty-five trillion, one hundred ninety-four billion, one hundred sixteen million, seven hundred ninety-one thousand, one hundred ninety-seven".