117621647460 has 72 divisors (see below), whose sum is σ = 358174075896. Its totient is φ = 31243714560.

The previous prime is 117621647453. The next prime is 117621647461. The reversal of 117621647460 is 64746126711.

117621647460 is a `hidden beast` number, since 1 + 17 + 621 + 6 + 4 + 7 + 4 + 6 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 76826534976 + 40795112484 = 277176^2 + 201978^2 .

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

It is not an unprimeable number, because it can be changed into a prime (117621647461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1225051 + ... + 1317570.

It is an arithmetic number, because the mean of its divisors is an integer number (4974639943).

Almost surely, 2^117621647460 is an apocalyptic number.

117621647460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117621647460 is an abundant number, since it is smaller than the sum of its proper divisors (240552428436).

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

117621647460 is a wasteful number, since it uses less digits than its factorization.

117621647460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542893 (or 2542888 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 117621647460 in words is "one hundred seventeen billion, six hundred twenty-one million, six hundred forty-seven thousand, four hundred sixty".