118621780930 has 16 divisors (see below), whose sum is σ = 217547870904. Its totient is φ = 46553453440.

The previous prime is 118621780909. The next prime is 118621781017. The reversal of 118621780930 is 39087126811.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 109765653481 + 8856127449 = 331309^2 + 94107^2 .

It is a super-2 number, since 2×118621780930² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111906811 + ... + 111907870.

Almost surely, 2^118621780930 is an apocalyptic number.

118621780930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118621780930 is a deficient number, since it is larger than the sum of its proper divisors (98926089974).

118621780930 is a wasteful number, since it uses less digits than its factorization.

118621780930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223814741.

The product of its (nonzero) digits is 145152, while the sum is 46.

The spelling of 118621780930 in words is "one hundred eighteen billion, six hundred twenty-one million, seven hundred eighty thousand, nine hundred thirty".