190644896947584 has 128 divisors (see below), whose sum is σ = 513643186224000. Its totient is φ = 62642824380416.

The previous prime is 190644896947529. The next prime is 190644896947621. The reversal of 190644896947584 is 485749698446091.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 190644896947497 and 190644896947506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7649527 + ... + 20971529.

It is an arithmetic number, because the mean of its divisors is an integer number (4012837392375).

Almost surely, 2^{190644896947584} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190644896947584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256821593112000).

190644896947584 is an abundant number, since it is smaller than the sum of its proper divisors (322998289276416).

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

190644896947584 is a wasteful number, since it uses less digits than its factorization.

190644896947584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13322552 (or 13322540 counting only the distinct ones).

The product of its (nonzero) digits is 15049359360, while the sum is 84.

The spelling of 190644896947584 in words is "one hundred ninety trillion, six hundred forty-four billion, eight hundred ninety-six million, nine hundred forty-seven thousand, five hundred eighty-four".