7163143993 has 4 divisors (see below), whose sum is σ = 7315551360. Its totient is φ = 7010736628.

The previous prime is 7163143979. The next prime is 7163144041. The reversal of 7163143993 is 3993413617.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7163143993 - 2²⁵ = 7129589561 is a prime.

It is a super-3 number, since 3×7163143993³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7163143903) 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, 76203613 + ... + 76203706.

It is an arithmetic number, because the mean of its divisors is an integer number (1828887840).

Almost surely, 2^7163143993 is an apocalyptic number.

It is an amenable number.

7163143993 is a deficient number, since it is larger than the sum of its proper divisors (152407367).

7163143993 is a wasteful number, since it uses less digits than its factorization.

7163143993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152407366.

The product of its digits is 367416, while the sum is 46.

The square root of 7163143993 is about 84635.3589996521. The cubic root of 7163143993 is about 1927.6783086762.

The spelling of 7163143993 in words is "seven billion, one hundred sixty-three million, one hundred forty-three thousand, nine hundred ninety-three".