194821512102 has 48 divisors (see below), whose sum is σ = 482496966432. Its totient is φ = 55653851520.

The previous prime is 194821512079. The next prime is 194821512103. The reversal of 194821512102 is 201215128491.

194821512102 is a `hidden beast` number, since 1 + 9 + 482 + 151 + 21 + 0 + 2 = 666.

194821512102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194821512103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 632602 + ... + 888722.

It is an arithmetic number, because the mean of its divisors is an integer number (10052020134).

Almost surely, 2^194821512102 is an apocalyptic number.

194821512102 is an abundant number, since it is smaller than the sum of its proper divisors (287675454330).

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

194821512102 is a wasteful number, since it uses less digits than its factorization.

194821512102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262173 (or 262170 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The spelling of 194821512102 in words is "one hundred ninety-four billion, eight hundred twenty-one million, five hundred twelve thousand, one hundred two".