194021038974 has 64 divisors (see below), whose sum is σ = 451679316480. Its totient is φ = 54412110720.

The previous prime is 194021038961. The next prime is 194021038997. The reversal of 194021038974 is 479830120491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1578732 + ... + 1697184.

It is an arithmetic number, because the mean of its divisors is an integer number (7057489320).

Almost surely, 2^194021038974 is an apocalyptic number.

194021038974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 194021038974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225839658240).

194021038974 is an abundant number, since it is smaller than the sum of its proper divisors (257658277506).

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

194021038974 is a wasteful number, since it uses less digits than its factorization.

194021038974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119185.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 194021038974 in words is "one hundred ninety-four billion, twenty-one million, thirty-eight thousand, nine hundred seventy-four".