29489893632 has 108 divisors (see below), whose sum is σ = 85083995724. Its totient is φ = 9823334400.

The previous prime is 29489893613. The next prime is 29489893633. The reversal of 29489893632 is 23639898492.

29489893632 is a `hidden beast` number, since 2 + 9 + 489 + 8 + 93 + 63 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17960288256 + 11529605376 = 134016^2 + 107376^2 .

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 29489893632.

It is not an unprimeable number, because it can be changed into a prime (29489893633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4376538 + ... + 4383270.

Almost surely, 2^29489893632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29489893632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42541997862).

29489893632 is an abundant number, since it is smaller than the sum of its proper divisors (55594102092).

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

29489893632 is a wasteful number, since it uses less digits than its factorization.

29489893632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8656 (or 8639 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 63.

The spelling of 29489893632 in words is "twenty-nine billion, four hundred eighty-nine million, eight hundred ninety-three thousand, six hundred thirty-two".