194115444544 has 56 divisors (see below), whose sum is σ = 440432756928. Its totient is φ = 83153280000.

The previous prime is 194115444533. The next prime is 194115444553. The reversal of 194115444544 is 445444511491.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 194115444494 and 194115444503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863919 + ... + 1065169.

Almost surely, 2^194115444544 is an apocalyptic number.

194115444544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

194115444544 is an abundant number, since it is smaller than the sum of its proper divisors (246317312384).

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

194115444544 is a wasteful number, since it uses less digits than its factorization.

194115444544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203423 (or 203413 counting only the distinct ones).

The product of its digits is 921600, while the sum is 46.

The spelling of 194115444544 in words is "one hundred ninety-four billion, one hundred fifteen million, four hundred forty-four thousand, five hundred forty-four".