29081041920 has 528 divisors, whose sum is σ = 116568953280. Its totient is φ = 6565920768.

The previous prime is 29081041919. The next prime is 29081041933. The reversal of 29081041920 is 2914018092.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 28707334 + ... + 28708346.

Almost surely, 2^29081041920 is an apocalyptic number.

29081041920 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 29081041920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58284476640).

29081041920 is an abundant number, since it is smaller than the sum of its proper divisors (87487911360).

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

29081041920 is a wasteful number, since it uses less digits than its factorization.

29081041920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140 (or 1119 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 29081041920 in words is "twenty-nine billion, eighty-one million, forty-one thousand, nine hundred twenty".