29874684478 has 4 divisors (see below), whose sum is σ = 44812026720. Its totient is φ = 14937342238.

The previous prime is 29874684467. The next prime is 29874684479. The reversal of 29874684478 is 87448647892.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29874684479) 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 as a sum of consecutive naturals, namely, 7468671118 + ... + 7468671121.

It is an arithmetic number, because the mean of its divisors is an integer number (11203006680).

Almost surely, 2^29874684478 is an apocalyptic number.

29874684478 is a deficient number, since it is larger than the sum of its proper divisors (14937342242).

29874684478 is a wasteful number, since it uses less digits than its factorization.

29874684478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14937342241.

The product of its digits is 173408256, while the sum is 67.

The spelling of 29874684478 in words is "twenty-nine billion, eight hundred seventy-four million, six hundred eighty-four thousand, four hundred seventy-eight".