29105680400 has 30 divisors (see below), whose sum is σ = 69926398122. Its totient is φ = 11642272000.

The previous prime is 29105680397. The next prime is 29105680451. The reversal of 29105680400 is 408650192.

It can be written as a sum of positive squares in 3 ways, for example, as 9426079744 + 19679600656 = 97088^2 + 140284^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36381701 + ... + 36382500.

Almost surely, 2^29105680400 is an apocalyptic number.

29105680400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29105680400 is an abundant number, since it is smaller than the sum of its proper divisors (40820717722).

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

29105680400 is a wasteful number, since it uses less digits than its factorization.

29105680400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72764219 (or 72764208 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 29105680400 in words is "twenty-nine billion, one hundred five million, six hundred eighty thousand, four hundred".