15729696419773 has 4 divisors (see below), whose sum is σ = 17976795908320. Its totient is φ = 13482596931228.

The previous prime is 15729696419743. The next prime is 15729696419783. The reversal of 15729696419773 is 37791469692751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15729696419773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15729696419773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15729696419743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123549744263 + ... + 1123549744276.

It is an arithmetic number, because the mean of its divisors is an integer number (4494198977080).

Almost surely, 2^{15729696419773} is an apocalyptic number.

It is an amenable number.

15729696419773 is a deficient number, since it is larger than the sum of its proper divisors (2247099488547).

15729696419773 is an equidigital number, since it uses as much as digits as its factorization.

15729696419773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247099488546.

The product of its digits is 1080203040, while the sum is 76.

The spelling of 15729696419773 in words is "fifteen trillion, seven hundred twenty-nine billion, six hundred ninety-six million, four hundred nineteen thousand, seven hundred seventy-three".