108838402025517 has 16 divisors (see below), whose sum is σ = 161259012869760. Its totient is φ = 72551313576000.

The previous prime is 108838402025491. The next prime is 108838402025593. The reversal of 108838402025517 is 715520204838801.

It is a happy number.

108838402025517 is a `hidden beast` number, since 1 + 0 + 8 + 8 + 3 + 84 + 0 + 2 + 0 + 2 + 551 + 7 = 666.

It is not a de Polignac number, because 108838402025517 - 2²³ = 108838393636909 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108838402026517) 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, 211435609 + ... + 211949742.

It is an arithmetic number, because the mean of its divisors is an integer number (10078688304360).

Almost surely, 2^{108838402025517} is an apocalyptic number.

It is an amenable number.

108838402025517 is a deficient number, since it is larger than the sum of its proper divisors (52420610844243).

108838402025517 is an equidigital number, since it uses as much as digits as its factorization.

108838402025517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423394881 (or 423394875 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 54.

The spelling of 108838402025517 in words is "one hundred eight trillion, eight hundred thirty-eight billion, four hundred two million, twenty-five thousand, five hundred seventeen".