117898636751 has 32 divisors (see below), whose sum is σ = 138231152640. Its totient is φ = 98459301600.

The previous prime is 117898636729. The next prime is 117898636769. The reversal of 117898636751 is 157636898711.

It is a cyclic number.

It is not a de Polignac number, because 117898636751 - 2¹⁰ = 117898635727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117898636151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118968866 + ... + 118969856.

It is an arithmetic number, because the mean of its divisors is an integer number (4319723520).

Almost surely, 2^117898636751 is an apocalyptic number.

117898636751 is a deficient number, since it is larger than the sum of its proper divisors (20332515889).

117898636751 is an equidigital number, since it uses as much as digits as its factorization.

117898636751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315.

The product of its digits is 15240960, while the sum is 62.

The spelling of 117898636751 in words is "one hundred seventeen billion, eight hundred ninety-eight million, six hundred thirty-six thousand, seven hundred fifty-one".