1819632718148 has 12 divisors (see below), whose sum is σ = 3639265436352. Its totient is φ = 779842593480.

The previous prime is 1819632718067. The next prime is 1819632718181. The reversal of 1819632718148 is 8418172369181.

It is a happy number.

1819632718148 is an admirable number.

It is a super-2 number, since 2×1819632718148² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32493441368 + ... + 32493441423.

It is an arithmetic number, because the mean of its divisors is an integer number (303272119696).

Almost surely, 2^{1819632718148} is an apocalyptic number.

It is an amenable number.

1819632718148 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1819632718148 is a wasteful number, since it uses less digits than its factorization.

1819632718148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64986882802 (or 64986882800 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 59.

The spelling of 1819632718148 in words is "one trillion, eight hundred nineteen billion, six hundred thirty-two million, seven hundred eighteen thousand, one hundred forty-eight".