29909590680 has 32 divisors (see below), whose sum is σ = 89728772400. Its totient is φ = 7975890816.

The previous prime is 29909590663. The next prime is 29909590681. The reversal of 29909590680 is 8609590992.

It is a super-2 number, since 2×29909590680² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 29909590680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29909590681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124623175 + ... + 124623414.

Almost surely, 2^29909590680 is an apocalyptic number.

29909590680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29909590680 is an abundant number, since it is smaller than the sum of its proper divisors (59819181720).

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

29909590680 is a wasteful number, since it uses less digits than its factorization.

29909590680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249246603 (or 249246599 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 57.

The spelling of 29909590680 in words is "twenty-nine billion, nine hundred nine million, five hundred ninety thousand, six hundred eighty".