29998399928599 has 16 divisors (see below), whose sum is σ = 30277936555776. Its totient is φ = 29720113315200.

The previous prime is 29998399928593. The next prime is 29998399928639. The reversal of 29998399928599 is 99582999389992.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29998399928599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29998399928593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167115204 + ... + 167294614.

It is an arithmetic number, because the mean of its divisors is an integer number (1892371034736).

Almost surely, 2^{29998399928599} is an apocalyptic number.

29998399928599 is a deficient number, since it is larger than the sum of its proper divisors (279536627177).

29998399928599 is a wasteful number, since it uses less digits than its factorization.

29998399928599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182886.

The product of its digits is 165299408640, while the sum is 100.

The spelling of 29998399928599 in words is "twenty-nine trillion, nine hundred ninety-eight billion, three hundred ninety-nine million, nine hundred twenty-eight thousand, five hundred ninety-nine".