18212151835 has 16 divisors (see below), whose sum is σ = 22194375840. Its totient is φ = 14344806400.

The previous prime is 18212151829. The next prime is 18212151883. The reversal of 18212151835 is 53815121281.

It is not a de Polignac number, because 18212151835 - 2⁷ = 18212151707 is a prime.

It is a super-2 number, since 2×18212151835² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18212151794 and 18212151803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10342 + ... + 191131.

It is an arithmetic number, because the mean of its divisors is an integer number (1387148490).

Almost surely, 2^18212151835 is an apocalyptic number.

18212151835 is a deficient number, since it is larger than the sum of its proper divisors (3982224005).

18212151835 is a wasteful number, since it uses less digits than its factorization.

18212151835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201758.

The product of its digits is 19200, while the sum is 37.

The spelling of 18212151835 in words is "eighteen billion, two hundred twelve million, one hundred fifty-one thousand, eight hundred thirty-five".