6618362623 has 4 divisors (see below), whose sum is σ = 6618558168. Its totient is φ = 6618167080.

The previous prime is 6618362579. The next prime is 6618362627. The reversal of 6618362623 is 3262638166.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3262638166 = 2 ⋅1631319083.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6618362623 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 6618362623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6618362627) 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, 32461 + ... + 119542.

It is an arithmetic number, because the mean of its divisors is an integer number (1654639542).

Almost surely, 2^6618362623 is an apocalyptic number.

6618362623 is a deficient number, since it is larger than the sum of its proper divisors (195545).

6618362623 is a wasteful number, since it uses less digits than its factorization.

6618362623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195544.

The product of its digits is 373248, while the sum is 43.

The square root of 6618362623 is about 81353.3196802687. The cubic root of 6618362623 is about 1877.5154503065.

The spelling of 6618362623 in words is "six billion, six hundred eighteen million, three hundred sixty-two thousand, six hundred twenty-three".