1990001134276 has 27 divisors (see below), whose sum is σ = 3675537392751. Its totient is φ = 942606724104.

The previous prime is 1990001134223. The next prime is 1990001134279. The reversal of 1990001134276 is 6724311000991.

The square root of 1990001134276 is 1410674.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1990001134279) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 53587051 + ... + 53624173.

Almost surely, 2^{1990001134276} is an apocalyptic number.

1990001134276 is the 1410674-th square number.

It is an amenable number.

1990001134276 is a deficient number, since it is larger than the sum of its proper divisors (1685536258475).

1990001134276 is an frugal number, since it uses more digits than its factorization.

1990001134276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74288 (or 37144 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 1990001134276 in words is "one trillion, nine hundred ninety billion, one million, one hundred thirty-four thousand, two hundred seventy-six".