117145744011471 has 64 divisors (see below), whose sum is σ = 179687692154880. Its totient is φ = 66499439132160.

The previous prime is 117145744011451. The next prime is 117145744011479. The reversal of 117145744011471 is 174110447541711.

It is not a de Polignac number, because 117145744011471 - 2¹⁸ = 117145743749327 is a prime.

It is a super-3 number, since 3×117145744011471³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 117145744011471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117145744011479) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4066557750 + ... + 4066586556.

It is an arithmetic number, because the mean of its divisors is an integer number (2807620189920).

Almost surely, 2^{117145744011471} is an apocalyptic number.

117145744011471 is a deficient number, since it is larger than the sum of its proper divisors (62541948143409).

117145744011471 is a wasteful number, since it uses less digits than its factorization.

117145744011471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30904.

The product of its (nonzero) digits is 439040, while the sum is 48.

The spelling of 117145744011471 in words is "one hundred seventeen trillion, one hundred forty-five billion, seven hundred forty-four million, eleven thousand, four hundred seventy-one".