2163749579 has 8 divisors (see below), whose sum is σ = 2304275040. Its totient is φ = 2024695936.

The previous prime is 2163749573. The next prime is 2163749629. The reversal of 2163749579 is 9759473612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2163749579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2163749579.

It is not an unprimeable number, because it can be changed into a prime (2163749573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364919 + ... + 370800.

It is an arithmetic number, because the mean of its divisors is an integer number (288034380).

Almost surely, 2^2163749579 is an apocalyptic number.

2163749579 is a deficient number, since it is larger than the sum of its proper divisors (140525461).

2163749579 is a wasteful number, since it uses less digits than its factorization.

2163749579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735909.

The product of its digits is 2857680, while the sum is 53.

The square root of 2163749579 is about 46516.1217106500. The cubic root of 2163749579 is about 1293.4083652414.

The spelling of 2163749579 in words is "two billion, one hundred sixty-three million, seven hundred forty-nine thousand, five hundred seventy-nine".