18652849079 has 4 divisors (see below), whose sum is σ = 19254553920. Its totient is φ = 18051144240.

The previous prime is 18652849073. The next prime is 18652849129. The reversal of 18652849079 is 97094825681.

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 18652849079 - 2¹² = 18652844983 is a prime.

It is a super-2 number, since 2×18652849079² (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 (18652849073) 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, 300852374 + ... + 300852435.

It is an arithmetic number, because the mean of its divisors is an integer number (4813638480).

Almost surely, 2^18652849079 is an apocalyptic number.

18652849079 is a deficient number, since it is larger than the sum of its proper divisors (601704841).

18652849079 is an equidigital number, since it uses as much as digits as its factorization.

18652849079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601704840.

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 18652849079 in words is "eighteen billion, six hundred fifty-two million, eight hundred forty-nine thousand, seventy-nine".