117867490020 has 216 divisors, whose sum is σ = 418699827000. Its totient is φ = 26760029184.

The previous prime is 117867490009. The next prime is 117867490049. The reversal of 117867490020 is 20094768711.

It is a happy number.

117867490020 is a `hidden beast` number, since 11 + 78 + 67 + 490 + 0 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3953139876 + 113914350144 = 62874^2 + 337512^2 .

It is a super-2 number, since 2×117867490020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1269336 + ... + 1359024.

It is an arithmetic number, because the mean of its divisors is an integer number (1938425125).

Almost surely, 2^117867490020 is an apocalyptic number.

117867490020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117867490020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209349913500).

117867490020 is an abundant number, since it is smaller than the sum of its proper divisors (300832336980).

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

117867490020 is a wasteful number, since it uses less digits than its factorization.

117867490020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89867 (or 89855 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 117867490020 in words is "one hundred seventeen billion, eight hundred sixty-seven million, four hundred ninety thousand, twenty".