117438386445 has 12 divisors (see below), whose sum is σ = 203559869916. Its totient is φ = 62633806080.

The previous prime is 117438386419. The next prime is 117438386473. The reversal of 117438386445 is 544683834711.

117438386445 is a `hidden beast` number, since 1 + 1 + 7 + 43 + 83 + 86 + 445 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 69390623241 + 48047763204 = 263421^2 + 219198^2 .

It is not a de Polignac number, because 117438386445 - 2²³ = 117429997837 is a prime.

It is a super-2 number, since 2×117438386445² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 117438386391 and 117438386400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1304870916 + ... + 1304871005.

It is an arithmetic number, because the mean of its divisors is an integer number (16963322493).

Almost surely, 2^117438386445 is an apocalyptic number.

117438386445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117438386445 is a deficient number, since it is larger than the sum of its proper divisors (86121483471).

117438386445 is a wasteful number, since it uses less digits than its factorization.

117438386445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609741932 (or 2609741929 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 117438386445 in words is "one hundred seventeen billion, four hundred thirty-eight million, three hundred eighty-six thousand, four hundred forty-five".