16729391358 has 48 divisors (see below), whose sum is σ = 38188800000. Its totient is φ = 5278251600.

The previous prime is 16729391323. The next prime is 16729391363. The reversal of 16729391358 is 85319392761.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 372393 + ... + 414891.

It is an arithmetic number, because the mean of its divisors is an integer number (795600000).

Almost surely, 2^16729391358 is an apocalyptic number.

16729391358 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16729391358 is an abundant number, since it is smaller than the sum of its proper divisors (21459408642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16729391358 is a wasteful number, since it uses less digits than its factorization.

16729391358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43677 (or 43674 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The spelling of 16729391358 in words is "sixteen billion, seven hundred twenty-nine million, three hundred ninety-one thousand, three hundred fifty-eight".