1518271398226 has 48 divisors (see below), whose sum is σ = 2535548601600. Its totient is φ = 681227426880.

The previous prime is 1518271398169. The next prime is 1518271398239. The reversal of 1518271398226 is 6228931728151.

It is a super-2 number, since 2×1518271398226² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125274195 + ... + 125286313.

It is an arithmetic number, because the mean of its divisors is an integer number (52823929200).

Almost surely, 2^{1518271398226} is an apocalyptic number.

1518271398226 is a deficient number, since it is larger than the sum of its proper divisors (1017277203374).

1518271398226 is a wasteful number, since it uses less digits than its factorization.

1518271398226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18775 (or 18764 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 55.

The spelling of 1518271398226 in words is "one trillion, five hundred eighteen billion, two hundred seventy-one million, three hundred ninety-eight thousand, two hundred twenty-six".