194720031860944 has 40 divisors (see below), whose sum is σ = 399490107211008. Its totient is φ = 91626604592640.

The previous prime is 194720031860929. The next prime is 194720031861031. The reversal of 194720031860944 is 449068130027491.

It is a super-2 number, since 2×194720031860944² (a number of 29 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 in 7 ways as a sum of consecutive naturals, for example, 20878402 + ... + 28728865.

Almost surely, 2^{194720031860944} is an apocalyptic number.

It is an amenable number.

194720031860944 is an abundant number, since it is smaller than the sum of its proper divisors (204770075350064).

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

194720031860944 is a wasteful number, since it uses less digits than its factorization.

194720031860944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49621723 (or 49621717 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 194720031860944 in words is "one hundred ninety-four trillion, seven hundred twenty billion, thirty-one million, eight hundred sixty thousand, nine hundred forty-four".