19090128396646 has 8 divisors (see below), whose sum is σ = 28635403786344. Its totient is φ = 9544993801200.

The previous prime is 19090128396613. The next prime is 19090128396667. The reversal of 19090128396646 is 64669382109091.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 34858935 + ... + 35402338.

It is an arithmetic number, because the mean of its divisors is an integer number (3579425473293).

Almost surely, 2^{19090128396646} is an apocalyptic number.

19090128396646 is a deficient number, since it is larger than the sum of its proper divisors (9545275389698).

19090128396646 is a wasteful number, since it uses less digits than its factorization.

19090128396646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70397126.

The product of its (nonzero) digits is 30233088, while the sum is 64.

The spelling of 19090128396646 in words is "nineteen trillion, ninety billion, one hundred twenty-eight million, three hundred ninety-six thousand, six hundred forty-six".