117172977135 has 16 divisors (see below), whose sum is σ = 190274925696. Its totient is φ = 61559533728.

The previous prime is 117172977133. The next prime is 117172977169. The reversal of 117172977135 is 531779271711.

It is a happy number.

It is not a de Polignac number, because 117172977135 - 2¹ = 117172977133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117172977133) 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, 58294009 + ... + 58296018.

It is an arithmetic number, because the mean of its divisors is an integer number (11892182856).

Almost surely, 2^117172977135 is an apocalyptic number.

117172977135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117172977135 is a deficient number, since it is larger than the sum of its proper divisors (73101948561).

117172977135 is a wasteful number, since it uses less digits than its factorization.

117172977135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116590102.

The product of its digits is 648270, while the sum is 51.

The spelling of 117172977135 in words is "one hundred seventeen billion, one hundred seventy-two million, nine hundred seventy-seven thousand, one hundred thirty-five".