16971729830 has 96 divisors (see below), whose sum is σ = 34632753120. Its totient is φ = 5979916800.

The previous prime is 16971729821. The next prime is 16971729847. The reversal of 16971729830 is 3892717961.

It is a super-2 number, since 2×16971729830² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7787681 + ... + 7789859.

It is an arithmetic number, because the mean of its divisors is an integer number (360757845).

Almost surely, 2^16971729830 is an apocalyptic number.

16971729830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16971729830 is an abundant number, since it is smaller than the sum of its proper divisors (17661023290).

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

16971729830 is a wasteful number, since it uses less digits than its factorization.

16971729830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406 (or 2395 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 53.

The spelling of 16971729830 in words is "sixteen billion, nine hundred seventy-one million, seven hundred twenty-nine thousand, eight hundred thirty".