2064257799 has 4 divisors (see below), whose sum is σ = 2752343736. Its totient is φ = 1376171864.

The previous prime is 2064257777. The next prime is 2064257809. The reversal of 2064257799 is 9977524602.

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

It is a cyclic number.

It is not a de Polignac number, because 2064257799 - 2²⁷ = 1930040071 is a prime.

It is a super-2 number, since 2×2064257799² = 8522320521464648802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064257599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344042964 + ... + 344042969.

It is an arithmetic number, because the mean of its divisors is an integer number (688085934).

Almost surely, 2^2064257799 is an apocalyptic number.

2064257799 is a deficient number, since it is larger than the sum of its proper divisors (688085937).

2064257799 is an equidigital number, since it uses as much as digits as its factorization.

2064257799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688085936.

The product of its (nonzero) digits is 1905120, while the sum is 51.

The square root of 2064257799 is about 45434.1039198530. The cubic root of 2064257799 is about 1273.2723593526.

The spelling of 2064257799 in words is "two billion, sixty-four million, two hundred fifty-seven thousand, seven hundred ninety-nine".