29803918842 has 16 divisors (see below), whose sum is σ = 66230930880. Its totient is φ = 9934639596.

The previous prime is 29803918829. The next prime is 29803918867. The reversal of 29803918842 is 24881930892.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 551924423 = 29803918842 / (2 + 9 + 8 + 0 + 3 + 9 + 1 + 8 + 8 + 4 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275962158 + ... + 275962265.

It is an arithmetic number, because the mean of its divisors is an integer number (4139433180).

Almost surely, 2^29803918842 is an apocalyptic number.

29803918842 is an abundant number, since it is smaller than the sum of its proper divisors (36427012038).

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

29803918842 is a wasteful number, since it uses less digits than its factorization.

29803918842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551924434 (or 551924428 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 29803918842 in words is "twenty-nine billion, eight hundred three million, nine hundred eighteen thousand, eight hundred forty-two".