1890973328306 has 4 divisors (see below), whose sum is σ = 2836459992462. Its totient is φ = 945486664152.

The previous prime is 1890973328303. The next prime is 1890973328311. The reversal of 1890973328306 is 6038233790981.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1675059766081 + 215913562225 = 1294241^2 + 464665^2 .

It is not an unprimeable number, because it can be changed into a prime (1890973328303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472743332075 + ... + 472743332078.

Almost surely, 2^{1890973328306} is an apocalyptic number.

1890973328306 is a deficient number, since it is larger than the sum of its proper divisors (945486664156).

1890973328306 is an equidigital number, since it uses as much as digits as its factorization.

1890973328306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945486664155.

The product of its (nonzero) digits is 11757312, while the sum is 59.

The spelling of 1890973328306 in words is "one trillion, eight hundred ninety billion, nine hundred seventy-three million, three hundred twenty-eight thousand, three hundred six".