117854782654 has 24 divisors (see below), whose sum is σ = 210660298128. Its totient is φ = 49277259360.

The previous prime is 117854782603. The next prime is 117854782679. The reversal of 117854782654 is 456287458711.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14661834 + ... + 14669869.

It is an arithmetic number, because the mean of its divisors is an integer number (8777512422).

Almost surely, 2^117854782654 is an apocalyptic number.

117854782654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

117854782654 is a deficient number, since it is larger than the sum of its proper divisors (92805515474).

117854782654 is a wasteful number, since it uses less digits than its factorization.

117854782654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29331760 (or 29331753 counting only the distinct ones).

The product of its digits is 15052800, while the sum is 58.

The spelling of 117854782654 in words is "one hundred seventeen billion, eight hundred fifty-four million, seven hundred eighty-two thousand, six hundred fifty-four".