1999704023488 has 14 divisors (see below), whose sum is σ = 3968162671736. Its totient is φ = 999852011712.

The previous prime is 1999704023467. The next prime is 1999704023491. The reversal of 1999704023488 is 8843204079991.

It is a super-2 number, since 2×1999704023488² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64), and also a Moran number because the ratio is a prime number: 31245375367 = 1999704023488 / (1 + 9 + 9 + 9 + 7 + 0 + 4 + 0 + 2 + 3 + 4 + 8 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15622687620 + ... + 15622687747.

Almost surely, 2^{1999704023488} is an apocalyptic number.

It is an amenable number.

1999704023488 is a deficient number, since it is larger than the sum of its proper divisors (1968458648248).

1999704023488 is an equidigital number, since it uses as much as digits as its factorization.

1999704023488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31245375379 (or 31245375369 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 1999704023488 in words is "one trillion, nine hundred ninety-nine billion, seven hundred four million, twenty-three thousand, four hundred eighty-eight".