7864530899 has 4 divisors (see below), whose sum is σ = 7865127000. Its totient is φ = 7863934800.

The previous prime is 7864530887. The next prime is 7864530959. The reversal of 7864530899 is 9980354687.

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 7864530899 - 2⁸ = 7864530643 is a prime.

It is a super-2 number, since 2×7864530899² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7864533899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277802 + ... + 304799.

It is an arithmetic number, because the mean of its divisors is an integer number (1966281750).

Almost surely, 2^7864530899 is an apocalyptic number.

7864530899 is a deficient number, since it is larger than the sum of its proper divisors (596101).

7864530899 is a wasteful number, since it uses less digits than its factorization.

7864530899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596100.

The product of its (nonzero) digits is 13063680, while the sum is 59.

The square root of 7864530899 is about 88682.1904273908. The cubic root of 7864530899 is about 1988.6465801335.

The spelling of 7864530899 in words is "seven billion, eight hundred sixty-four million, five hundred thirty thousand, eight hundred ninety-nine".