117427628551 has 16 divisors (see below), whose sum is σ = 121657525920. Its totient is φ = 113281182720.

The previous prime is 117427628543. The next prime is 117427628621. The reversal of 117427628551 is 155826724711.

It is a cyclic number.

It is not a de Polignac number, because 117427628551 - 2³ = 117427628543 is a prime.

It is a super-2 number, since 2×117427628551² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117427628495 and 117427628504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117427622551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1520691 + ... + 1596043.

It is an arithmetic number, because the mean of its divisors is an integer number (7603595370).

Almost surely, 2^117427628551 is an apocalyptic number.

117427628551 is a deficient number, since it is larger than the sum of its proper divisors (4229897369).

117427628551 is an equidigital number, since it uses as much as digits as its factorization.

117427628551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75906.

The product of its digits is 940800, while the sum is 49.

The spelling of 117427628551 in words is "one hundred seventeen billion, four hundred twenty-seven million, six hundred twenty-eight thousand, five hundred fifty-one".