194863023738 has 48 divisors (see below), whose sum is σ = 425980485216. Its totient is φ = 64374516960.

The previous prime is 194863023737. The next prime is 194863023811. The reversal of 194863023738 is 837320368491.

194863023738 is a `hidden beast` number, since 194 + 86 + 3 + 0 + 2 + 373 + 8 = 666.

It is a super-4 number, since 4×194863023738⁴ (a number of 46 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (194863023731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1769281 + ... + 1876187.

It is an arithmetic number, because the mean of its divisors is an integer number (8874593442).

Almost surely, 2^194863023738 is an apocalyptic number.

194863023738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

194863023738 is an abundant number, since it is smaller than the sum of its proper divisors (231117461478).

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

194863023738 is a wasteful number, since it uses less digits than its factorization.

194863023738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107819 (or 107816 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 194863023738 in words is "one hundred ninety-four billion, eight hundred sixty-three million, twenty-three thousand, seven hundred thirty-eight".