118397928100 has 81 divisors (see below), whose sum is σ = 271307303841. Its totient is φ = 44841808800.

The previous prime is 118397928097. The next prime is 118397928139. The reversal of 118397928100 is 1829793811.

The square root of 118397928100 is 344090.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 42623254116 + 75774673984 = 206454^2 + 275272^2 .

It is a super-2 number, since 2×118397928100² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 65376195 + ... + 65378005.

Almost surely, 2^118397928100 is an apocalyptic number.

118397928100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118397928100 is the 344090-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118397928100

118397928100 is an abundant number, since it is smaller than the sum of its proper divisors (152909375741).

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

118397928100 is an equidigital number, since it uses as much as digits as its factorization.

118397928100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 49.

Multiplying 118397928100 by its sum of digits (49), we get a square (5801498476900 = 2408630²).

The spelling of 118397928100 in words is "one hundred eighteen billion, three hundred ninety-seven million, nine hundred twenty-eight thousand, one hundred".