1812274664928 has 384 divisors, whose sum is σ = 6055416299520. Its totient is φ = 461863434240.

The previous prime is 1812274664917. The next prime is 1812274665011. The reversal of 1812274664928 is 8294664722181.

It is a happy number.

It is a super-2 number, since 2×1812274664928² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32408833 + ... + 32464703.

It is an arithmetic number, because the mean of its divisors is an integer number (15769313280).

Almost surely, 2^{1812274664928} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1812274664928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3027708149760).

1812274664928 is an abundant number, since it is smaller than the sum of its proper divisors (4243141634592).

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

1812274664928 is a wasteful number, since it uses less digits than its factorization.

1812274664928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56030 (or 56022 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 60.

The spelling of 1812274664928 in words is "one trillion, eight hundred twelve billion, two hundred seventy-four million, six hundred sixty-four thousand, nine hundred twenty-eight".