29887674434 has 4 divisors (see below), whose sum is σ = 44831511654. Its totient is φ = 14943837216.

The previous prime is 29887674419. The next prime is 29887674451. The reversal of 29887674434 is 43447678892.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 22081068409 + 7806606025 = 148597^2 + 88355^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7471918607 + ... + 7471918610.

Almost surely, 2^29887674434 is an apocalyptic number.

29887674434 is a deficient number, since it is larger than the sum of its proper divisors (14943837220).

29887674434 is a wasteful number, since it uses less digits than its factorization.

29887674434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14943837219.

The product of its digits is 65028096, while the sum is 62.

The spelling of 29887674434 in words is "twenty-nine billion, eight hundred eighty-seven million, six hundred seventy-four thousand, four hundred thirty-four".