117785704425 has 12 divisors (see below), whose sum is σ = 194739031440. Its totient is φ = 62819042320.

The previous prime is 117785704423. The next prime is 117785704427. The reversal of 117785704425 is 524407587711.

It is an interprime number because it is at equal distance from previous prime (117785704423) and next prime (117785704427).

It is not a de Polignac number, because 117785704425 - 2¹ = 117785704423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117785704423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 785237955 + ... + 785238104.

It is an arithmetic number, because the mean of its divisors is an integer number (16228252620).

Almost surely, 2^117785704425 is an apocalyptic number.

117785704425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117785704425 is a deficient number, since it is larger than the sum of its proper divisors (76953327015).

117785704425 is a wasteful number, since it uses less digits than its factorization.

117785704425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570476072 (or 1570476067 counting only the distinct ones).

The product of its (nonzero) digits is 2195200, while the sum is 51.

The spelling of 117785704425 in words is "one hundred seventeen billion, seven hundred eighty-five million, seven hundred four thousand, four hundred twenty-five".