190445701448 has 12 divisors (see below), whose sum is σ = 357088004595. Its totient is φ = 95222233560.

The previous prime is 190445701441. The next prime is 190445701463. The reversal of 190445701448 is 844107544091.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 95222850724 + 95222850724 = 308582^2 + 308582^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=308582.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190445701441) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1157183 + ... + 1311473.

Almost surely, 2^190445701448 is an apocalyptic number.

It is an amenable number.

190445701448 is a deficient number, since it is larger than the sum of its proper divisors (166642303147).

190445701448 is an frugal number, since it uses more digits than its factorization.

190445701448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308588 (or 154293 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 190445701448 in words is "one hundred ninety billion, four hundred forty-five million, seven hundred one thousand, four hundred forty-eight".