29490779136 has 704 divisors, whose sum is σ = 103531954176. Its totient is φ = 7254835200.

The previous prime is 29490779119. The next prime is 29490779159. The reversal of 29490779136 is 63197709492.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 355310551 + ... + 355310633.

Almost surely, 2^29490779136 is an apocalyptic number.

29490779136 is a gapful number since it is divisible by the number (26) 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 29490779136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51765977088).

29490779136 is an abundant number, since it is smaller than the sum of its proper divisors (74041175040).

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

29490779136 is a wasteful number, since it uses less digits than its factorization.

29490779136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 57.

The spelling of 29490779136 in words is "twenty-nine billion, four hundred ninety million, seven hundred seventy-nine thousand, one hundred thirty-six".