2064451893 has 16 divisors (see below), whose sum is σ = 3156088320. Its totient is φ = 1175840496.

The previous prime is 2064451891. The next prime is 2064451951. The reversal of 2064451893 is 3981544602.

It is not a de Polignac number, because 2064451893 - 2¹ = 2064451891 is a prime.

It is a super-2 number, since 2×2064451893² = 8523923237022566898, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064451891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153663 + ... + 166556.

It is an arithmetic number, because the mean of its divisors is an integer number (197255520).

Almost surely, 2^2064451893 is an apocalyptic number.

It is an amenable number.

2064451893 is a deficient number, since it is larger than the sum of its proper divisors (1091636427).

2064451893 is a wasteful number, since it uses less digits than its factorization.

2064451893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320536.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 2064451893 is about 45436.2398642317. The cubic root of 2064451893 is about 1273.3122650239.

The spelling of 2064451893 in words is "two billion, sixty-four million, four hundred fifty-one thousand, eight hundred ninety-three".