118891452820 has 36 divisors (see below), whose sum is σ = 290434837140. Its totient is φ = 40762783488.

The previous prime is 118891452803. The next prime is 118891452893. The reversal of 118891452820 is 28254198811.

It can be written as a sum of positive squares in 2 ways, for example, as 22764170884 + 96127281936 = 150878^2 + 310044^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

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, 60657925 + ... + 60659884.

It is an arithmetic number, because the mean of its divisors is an integer number (8067634365).

Almost surely, 2^118891452820 is an apocalyptic number.

118891452820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118891452820 is an abundant number, since it is smaller than the sum of its proper divisors (171543384320).

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

118891452820 is a wasteful number, since it uses less digits than its factorization.

118891452820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121317832 (or 121317823 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 49.

The spelling of 118891452820 in words is "one hundred eighteen billion, eight hundred ninety-one million, four hundred fifty-two thousand, eight hundred twenty".