1819100912432 has 40 divisors (see below), whose sum is σ = 3534444093600. Its totient is φ = 906989844992.

The previous prime is 1819100912407. The next prime is 1819100912501. The reversal of 1819100912432 is 2342190019181.

It is a happy number.

It is a super-2 number, since 2×1819100912432² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1819100912432.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8172794 + ... + 8392422.

It is an arithmetic number, because the mean of its divisors is an integer number (88361102340).

Almost surely, 2^{1819100912432} is an apocalyptic number.

It is an amenable number.

1819100912432 is a deficient number, since it is larger than the sum of its proper divisors (1715343181168).

1819100912432 is a wasteful number, since it uses less digits than its factorization.

1819100912432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221093 (or 221087 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The spelling of 1819100912432 in words is "one trillion, eight hundred nineteen billion, one hundred million, nine hundred twelve thousand, four hundred thirty-two".