1819842992572 has 72 divisors (see below), whose sum is σ = 3532774625856. Its totient is φ = 819595392000.

The previous prime is 1819842992567. The next prime is 1819842992621. The reversal of 1819842992572 is 2752992489181.

It is a super-2 number, since 2×1819842992572² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1819842992498 and 1819842992507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286090672 + ... + 286097032.

It is an arithmetic number, because the mean of its divisors is an integer number (49066314248).

Almost surely, 2^{1819842992572} is an apocalyptic number.

It is an amenable number.

1819842992572 is a deficient number, since it is larger than the sum of its proper divisors (1712931633284).

1819842992572 is a wasteful number, since it uses less digits than its factorization.

1819842992572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11731 (or 11718 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 67.

The spelling of 1819842992572 in words is "one trillion, eight hundred nineteen billion, eight hundred forty-two million, nine hundred ninety-two thousand, five hundred seventy-two".