18162863513 has 8 divisors (see below), whose sum is σ = 18760062720. Its totient is φ = 17566370640.

The previous prime is 18162863507. The next prime is 18162863527. The reversal of 18162863513 is 31536826181.

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

It is a cyclic number.

It is not a de Polignac number, because 18162863513 - 2²² = 18158669209 is a prime.

It is a super-2 number, since 2×18162863513² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18162863533) 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, 124058 + ... + 227411.

It is an arithmetic number, because the mean of its divisors is an integer number (2345007840).

Almost surely, 2^18162863513 is an apocalyptic number.

It is an amenable number.

18162863513 is a deficient number, since it is larger than the sum of its proper divisors (597199207).

18162863513 is a wasteful number, since it uses less digits than its factorization.

18162863513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353167.

The product of its digits is 207360, while the sum is 44.

The spelling of 18162863513 in words is "eighteen billion, one hundred sixty-two million, eight hundred sixty-three thousand, five hundred thirteen".