117581452450 has 48 divisors (see below), whose sum is σ = 272666816064. Its totient is φ = 36648763200.

The previous prime is 117581452433. The next prime is 117581452489. The reversal of 117581452450 is 54254185711.

It is a super-2 number, since 2×117581452450² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 117581452397 and 117581452406.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15266469 + ... + 15274168.

It is an arithmetic number, because the mean of its divisors is an integer number (5680558668).

Almost surely, 2^117581452450 is an apocalyptic number.

117581452450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117581452450 is an abundant number, since it is smaller than the sum of its proper divisors (155085363614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117581452450 is a wasteful number, since it uses less digits than its factorization.

117581452450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30540667 (or 30540662 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 43.

The spelling of 117581452450 in words is "one hundred seventeen billion, five hundred eighty-one million, four hundred fifty-two thousand, four hundred fifty".