118644991740 has 72 divisors (see below), whose sum is σ = 392607070128. Its totient is φ = 28762421760.

The previous prime is 118644991739. The next prime is 118644991741. The reversal of 118644991740 is 47199446811.

It is a happy number.

118644991740 is a `hidden beast` number, since 1 + 1 + 86 + 4 + 499 + 1 + 74 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (118644991739) and next prime (118644991741).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118644991741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29958877 + ... + 29962836.

It is an arithmetic number, because the mean of its divisors is an integer number (5452875974).

Almost surely, 2^118644991740 is an apocalyptic number.

118644991740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118644991740 is an abundant number, since it is smaller than the sum of its proper divisors (273962078388).

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

118644991740 is a wasteful number, since it uses less digits than its factorization.

118644991740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59921739 (or 59921734 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 118644991740 in words is "one hundred eighteen billion, six hundred forty-four million, nine hundred ninety-one thousand, seven hundred forty".