29986772480 has 160 divisors (see below), whose sum is σ = 83722123584. Its totient is φ = 10086875136.

The previous prime is 29986772449. The next prime is 29986772489. The reversal of 29986772480 is 8427768992.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29986772489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 933974 + ... + 965546.

Almost surely, 2^29986772480 is an apocalyptic number.

29986772480 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 29986772480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41861061792).

29986772480 is an abundant number, since it is smaller than the sum of its proper divisors (53735351104).

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

29986772480 is an equidigital number, since it uses as much as digits as its factorization.

29986772480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31656 (or 31640 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 62.

The spelling of 29986772480 in words is "twenty-nine billion, nine hundred eighty-six million, seven hundred seventy-two thousand, four hundred eighty".