117251151551 has 4 divisors (see below), whose sum is σ = 117307335312. Its totient is φ = 117194967792.

The previous prime is 117251151449. The next prime is 117251151557. The reversal of 117251151551 is 155151152711.

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 117251151551 - 2¹⁸ = 117250889407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117251151557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28088750 + ... + 28092923.

It is an arithmetic number, because the mean of its divisors is an integer number (29326833828).

Almost surely, 2^117251151551 is an apocalyptic number.

117251151551 is a deficient number, since it is larger than the sum of its proper divisors (56183761).

117251151551 is an equidigital number, since it uses as much as digits as its factorization.

117251151551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56183760.

The product of its digits is 8750, while the sum is 35.

The spelling of 117251151551 in words is "one hundred seventeen billion, two hundred fifty-one million, one hundred fifty-one thousand, five hundred fifty-one".