118378354457 has 16 divisors (see below), whose sum is σ = 132616673280. Its totient is φ = 104757853200.

The previous prime is 118378354453. The next prime is 118378354477. The reversal of 118378354457 is 754453873811.

It is not a de Polignac number, because 118378354457 - 2² = 118378354453 is a prime.

It is a super-3 number, since 3×118378354457³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118378354453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897623 + ... + 1021020.

It is an arithmetic number, because the mean of its divisors is an integer number (8288542080).

Almost surely, 2^118378354457 is an apocalyptic number.

It is an amenable number.

118378354457 is a deficient number, since it is larger than the sum of its proper divisors (14238318823).

118378354457 is a wasteful number, since it uses less digits than its factorization.

118378354457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918804.

The product of its digits is 11289600, while the sum is 56.

The spelling of 118378354457 in words is "one hundred eighteen billion, three hundred seventy-eight million, three hundred fifty-four thousand, four hundred fifty-seven".