1868694961100 has 72 divisors (see below), whose sum is σ = 4423954848768. Its totient is φ = 679487924800.

The previous prime is 1868694961097. The next prime is 1868694961117. The reversal of 1868694961100 is 11694968681.

It is a self number, because there is not a number n which added to its sum of digits gives 1868694961100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26945069 + ... + 27014331.

It is an arithmetic number, because the mean of its divisors is an integer number (61443817344).

Almost surely, 2^{1868694961100} is an apocalyptic number.

1868694961100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1868694961100 is an abundant number, since it is smaller than the sum of its proper divisors (2555259887668).

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

1868694961100 is a wasteful number, since it uses less digits than its factorization.

1868694961100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93815 (or 93808 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 59.

The spelling of 1868694961100 in words is "one trillion, eight hundred sixty-eight billion, six hundred ninety-four million, nine hundred sixty-one thousand, one hundred".