29997465390536 has 64 divisors (see below), whose sum is σ = 65174910249600. Its totient is φ = 12677207228928.

The previous prime is 29997465390533. The next prime is 29997465390589. The reversal of 29997465390536 is 63509356479992.

It is not an unprimeable number, because it can be changed into a prime (29997465390533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18190370 + ... + 19770798.

It is an arithmetic number, because the mean of its divisors is an integer number (1018357972650).

Almost surely, 2^{29997465390536} 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 29997465390536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32587455124800).

29997465390536 is an abundant number, since it is smaller than the sum of its proper divisors (35177444859064).

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

29997465390536 is a wasteful number, since it uses less digits than its factorization.

29997465390536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585158 (or 1585154 counting only the distinct ones).

The product of its (nonzero) digits is 2976069600, while the sum is 77.

The spelling of 29997465390536 in words is "twenty-nine trillion, nine hundred ninety-seven billion, four hundred sixty-five million, three hundred ninety thousand, five hundred thirty-six".