194142652864 has 14 divisors (see below), whose sum is σ = 385251826904. Its totient is φ = 97071326400.

The previous prime is 194142652843. The next prime is 194142652871. The reversal of 194142652864 is 468256241491.

194142652864 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×194142652864² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1516739412 + ... + 1516739539.

It is an arithmetic number, because the mean of its divisors is an integer number (27517987636).

Almost surely, 2^194142652864 is an apocalyptic number.

It is an amenable number.

194142652864 is a deficient number, since it is larger than the sum of its proper divisors (191109174040).

194142652864 is an equidigital number, since it uses as much as digits as its factorization.

194142652864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033478963 (or 3033478953 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 52.

The spelling of 194142652864 in words is "one hundred ninety-four billion, one hundred forty-two million, six hundred fifty-two thousand, eight hundred sixty-four".