7113499821 has 12 divisors (see below), whose sum is σ = 10283232960. Its totient is φ = 4738558920.

The previous prime is 7113499793. The next prime is 7113499831. The reversal of 7113499821 is 1289943117.

7113499821 is a `hidden beast` number, since 71 + 13 + 499 + 82 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-7113499821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7113499831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302565 + ... + 325226.

It is an arithmetic number, because the mean of its divisors is an integer number (856936080).

Almost surely, 2^7113499821 is an apocalyptic number.

It is an amenable number.

7113499821 is a deficient number, since it is larger than the sum of its proper divisors (3169733139).

7113499821 is a wasteful number, since it uses less digits than its factorization.

7113499821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629056 (or 629053 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 7113499821 is about 84341.5663892959. The cubic root of 7113499821 is about 1923.2147227097.

The spelling of 7113499821 in words is "seven billion, one hundred thirteen million, four hundred ninety-nine thousand, eight hundred twenty-one".