7213893505 has 32 divisors (see below), whose sum is σ = 10667430144. Its totient is φ = 4560558336.

The previous prime is 7213893493. The next prime is 7213893541. The reversal of 7213893505 is 5053983127.

It is a cyclic number.

It is not a de Polignac number, because 7213893505 - 2²⁹ = 6677022593 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 378822 + ... + 397408.

It is an arithmetic number, because the mean of its divisors is an integer number (333357192).

Almost surely, 2^7213893505 is an apocalyptic number.

It is an amenable number.

7213893505 is a deficient number, since it is larger than the sum of its proper divisors (3453536639).

7213893505 is a wasteful number, since it uses less digits than its factorization.

7213893505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19465.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 7213893505 is about 84934.6425494333. The cubic root of 7213893505 is about 1932.2200111266.

The spelling of 7213893505 in words is "seven billion, two hundred thirteen million, eight hundred ninety-three thousand, five hundred five".