8533993919 has 4 divisors (see below), whose sum is σ = 9309811560. Its totient is φ = 7758176280.

The previous prime is 8533993907. The next prime is 8533993927. The reversal of 8533993919 is 9193993358.

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 8533993919 - 2¹⁶ = 8533928383 is a prime.

It is a super-2 number, since 2×8533993919² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8533993939) 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, 387908804 + ... + 387908825.

It is an arithmetic number, because the mean of its divisors is an integer number (2327452890).

Almost surely, 2^8533993919 is an apocalyptic number.

8533993919 is a deficient number, since it is larger than the sum of its proper divisors (775817641).

8533993919 is a wasteful number, since it uses less digits than its factorization.

8533993919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775817640.

The product of its digits is 7085880, while the sum is 59.

The square root of 8533993919 is about 92379.6185259498. The cubic root of 8533993919 is about 2043.5445488792.

The spelling of 8533993919 in words is "eight billion, five hundred thirty-three million, nine hundred ninety-three thousand, nine hundred nineteen".