29873987398 has 4 divisors (see below), whose sum is σ = 44810981100. Its totient is φ = 14936993698.

The previous prime is 29873987329. The next prime is 29873987431. The reversal of 29873987398 is 89378937892.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 29873987398.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7468496848 + ... + 7468496851.

It is an arithmetic number, because the mean of its divisors is an integer number (11202745275).

Almost surely, 2^29873987398 is an apocalyptic number.

29873987398 is a deficient number, since it is larger than the sum of its proper divisors (14936993702).

29873987398 is a wasteful number, since it uses less digits than its factorization.

29873987398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14936993701.

The product of its digits is 329204736, while the sum is 73.

The spelling of 29873987398 in words is "twenty-nine billion, eight hundred seventy-three million, nine hundred eighty-seven thousand, three hundred ninety-eight".