1999724590364 has 12 divisors (see below), whose sum is σ = 3499538152488. Its totient is φ = 999856546800.

The previous prime is 1999724590337. The next prime is 1999724590399. The reversal of 1999724590364 is 4630954279991.

It is a junction number, because it is equal to n+sod(n) for n = 1999724590294 and 1999724590303.

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 3 ways as a sum of consecutive naturals, for example, 600227 + ... + 2087994.

It is an arithmetic number, because the mean of its divisors is an integer number (291628179374).

Almost surely, 2^{1999724590364} is an apocalyptic number.

It is an amenable number.

1999724590364 is a deficient number, since it is larger than the sum of its proper divisors (1499813562124).

1999724590364 is a wasteful number, since it uses less digits than its factorization.

1999724590364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874196 (or 2874194 counting only the distinct ones).

The product of its (nonzero) digits is 132269760, while the sum is 68.

The spelling of 1999724590364 in words is "one trillion, nine hundred ninety-nine billion, seven hundred twenty-four million, five hundred ninety thousand, three hundred sixty-four".