117032551987 has 4 divisors (see below), whose sum is σ = 126035056000. Its totient is φ = 108030047976.

The previous prime is 117032551913. The next prime is 117032551997. The reversal of 117032551987 is 789155230711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117032551987 - 2⁷ = 117032551859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117032551987.

It is not an unprimeable number, because it can be changed into a prime (117032551997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4501251987 + ... + 4501252012.

It is an arithmetic number, because the mean of its divisors is an integer number (31508764000).

Almost surely, 2^117032551987 is an apocalyptic number.

117032551987 is a deficient number, since it is larger than the sum of its proper divisors (9002504013).

117032551987 is an equidigital number, since it uses as much as digits as its factorization.

117032551987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9002504012.

The product of its (nonzero) digits is 529200, while the sum is 49.

The spelling of 117032551987 in words is "one hundred seventeen billion, thirty-two million, five hundred fifty-one thousand, nine hundred eighty-seven".