29199021898 has 8 divisors (see below), whose sum is σ = 44982277092. Its totient is φ = 14204929536.

The previous prime is 29199021889. The next prime is 29199021919. The reversal of 29199021898 is 89812099192.

It can be written as a sum of positive squares in 2 ways, for example, as 28678406409 + 520615489 = 169347^2 + 22817^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 197290615 + ... + 197290762.

Almost surely, 2^29199021898 is an apocalyptic number.

29199021898 is a deficient number, since it is larger than the sum of its proper divisors (15783255194).

29199021898 is a wasteful number, since it uses less digits than its factorization.

29199021898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394581416.

The product of its (nonzero) digits is 1679616, while the sum is 58.

The spelling of 29199021898 in words is "twenty-nine billion, one hundred ninety-nine million, twenty-one thousand, eight hundred ninety-eight".