18028265151 has 8 divisors (see below), whose sum is σ = 25886739760. Its totient is φ = 11094316992.

The previous prime is 18028265147. The next prime is 18028265161. The reversal of 18028265151 is 15156282081.

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

It is not a de Polignac number, because 18028265151 - 2² = 18028265147 is a prime.

It is a super-2 number, since 2×18028265151² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 462263209 = 18028265151 / (1 + 8 + 0 + 2 + 8 + 2 + 6 + 5 + 1 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18028265131) 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, 231131566 + ... + 231131643.

It is an arithmetic number, because the mean of its divisors is an integer number (3235842470).

Almost surely, 2^18028265151 is an apocalyptic number.

18028265151 is a deficient number, since it is larger than the sum of its proper divisors (7858474609).

18028265151 is a wasteful number, since it uses less digits than its factorization.

18028265151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462263225.

The product of its (nonzero) digits is 38400, while the sum is 39.

The spelling of 18028265151 in words is "eighteen billion, twenty-eight million, two hundred sixty-five thousand, one hundred fifty-one".