2064991834 has 16 divisors (see below), whose sum is σ = 3113313768. Its totient is φ = 1027233792.

The previous prime is 2064991829. The next prime is 2064991843. The reversal of 2064991834 is 4381994602.

It can be written as a sum of positive squares in 4 ways, for example, as 1818596025 + 246395809 = 42645^2 + 15697^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358344 + ... + 364060.

Almost surely, 2^2064991834 is an apocalyptic number.

2064991834 is a deficient number, since it is larger than the sum of its proper divisors (1048321934).

2064991834 is a wasteful number, since it uses less digits than its factorization.

2064991834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6609.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 2064991834 is about 45442.1812196554. The cubic root of 2064991834 is about 1273.4232635850.

The spelling of 2064991834 in words is "two billion, sixty-four million, nine hundred ninety-one thousand, eight hundred thirty-four".