1890838106516 has 6 divisors (see below), whose sum is σ = 3308966686410. Its totient is φ = 945419053256.

The previous prime is 1890838106497. The next prime is 1890838106519. The reversal of 1890838106516 is 6156018380981.

It can be written as a sum of positive squares in only one way, i.e., 1836919408900 + 53918697616 = 1355330^2 + 232204^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890838106519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236354763311 + ... + 236354763318.

It is an arithmetic number, because the mean of its divisors is an integer number (551494447735).

Almost surely, 2^{1890838106516} is an apocalyptic number.

It is an amenable number.

1890838106516 is a deficient number, since it is larger than the sum of its proper divisors (1418128579894).

1890838106516 is a wasteful number, since it uses less digits than its factorization.

1890838106516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472709526633 (or 472709526631 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 56.

The spelling of 1890838106516 in words is "one trillion, eight hundred ninety billion, eight hundred thirty-eight million, one hundred six thousand, five hundred sixteen".