11918953700 has 36 divisors (see below), whose sum is σ = 25903401972. Its totient is φ = 4760342400.

The previous prime is 11918953643. The next prime is 11918953703. The reversal of 11918953700 is 735981911.

11918953700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 841812196 + 11077141504 = 29014^2 + 105248^2 .

It is a super-2 number, since 2×11918953700² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11918953703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24059 + ... + 156258.

Almost surely, 2^11918953700 is an apocalyptic number.

11918953700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11918953700 is an abundant number, since it is smaller than the sum of its proper divisors (13984448272).

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

11918953700 is a wasteful number, since it uses less digits than its factorization.

11918953700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180992 (or 180985 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 44.

The spelling of 11918953700 in words is "eleven billion, nine hundred eighteen million, nine hundred fifty-three thousand, seven hundred".