1729992292172 has 12 divisors (see below), whose sum is σ = 3030168083880. Its totient is φ = 864229982496.

The previous prime is 1729992292151. The next prime is 1729992292181. The reversal of 1729992292172 is 2712922999271.

It is a super-2 number, since 2×1729992292172² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191535818 + ... + 191544849.

It is an arithmetic number, because the mean of its divisors is an integer number (252514006990).

Almost surely, 2^{1729992292172} is an apocalyptic number.

It is an amenable number.

1729992292172 is a deficient number, since it is larger than the sum of its proper divisors (1300175791708).

1729992292172 is a wasteful number, since it uses less digits than its factorization.

1729992292172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383081800 (or 383081798 counting only the distinct ones).

The product of its digits is 10287648, while the sum is 62.

The spelling of 1729992292172 in words is "one trillion, seven hundred twenty-nine billion, nine hundred ninety-two million, two hundred ninety-two thousand, one hundred seventy-two".