194153286312 has 80 divisors (see below), whose sum is σ = 543884431860. Its totient is φ = 64708782336.

The previous prime is 194153286277. The next prime is 194153286337. The reversal of 194153286312 is 213682351491.

194153286312 is a `hidden beast` number, since 1 + 9 + 4 + 1 + 5 + 3 + 2 + 8 + 631 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 153314534916 + 40838751396 = 391554^2 + 202086^2 .

It is a super-2 number, since 2×194153286312² (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 19 ways as a sum of consecutive naturals, for example, 5995348 + ... + 6027644.

Almost surely, 2^194153286312 is an apocalyptic number.

194153286312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

194153286312 is an abundant number, since it is smaller than the sum of its proper divisors (349731145548).

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

194153286312 is a wasteful number, since it uses less digits than its factorization.

194153286312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41592 (or 41579 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The spelling of 194153286312 in words is "one hundred ninety-four billion, one hundred fifty-three million, two hundred eighty-six thousand, three hundred twelve".