118923587640 has 768 divisors, whose sum is σ = 478291806720. Its totient is φ = 26194544640.

The previous prime is 118923587623. The next prime is 118923587659. The reversal of 118923587640 is 46785329811.

118923587640 is a `hidden beast` number, since 1 + 18 + 9 + 2 + 3 + 587 + 6 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 93126682 + ... + 93127958.

It is an arithmetic number, because the mean of its divisors is an integer number (622775790).

It is a 1-persistent number, because it is pandigital, but 2⋅118923587640 = 237847175280 is not.

Almost surely, 2^118923587640 is an apocalyptic number.

118923587640 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 118923587640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239145903360).

118923587640 is an abundant number, since it is smaller than the sum of its proper divisors (359368219080).

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

118923587640 is a wasteful number, since it uses less digits than its factorization.

118923587640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 118923587640 in words is "one hundred eighteen billion, nine hundred twenty-three million, five hundred eighty-seven thousand, six hundred forty".