29797444500 has 96 divisors (see below), whose sum is σ = 87134261760. Its totient is φ = 7912643200.

The previous prime is 29797444489. The next prime is 29797444553. The reversal of 29797444500 is 544479792.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 316942 + ... + 400058.

It is an arithmetic number, because the mean of its divisors is an integer number (907648560).

Almost surely, 2^29797444500 is an apocalyptic number.

29797444500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29797444500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43567130880).

29797444500 is an abundant number, since it is smaller than the sum of its proper divisors (57336817260).

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

29797444500 is a wasteful number, since it uses less digits than its factorization.

29797444500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83378 (or 83366 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 29797444500 in words is "twenty-nine billion, seven hundred ninety-seven million, four hundred forty-four thousand, five hundred".