29699907918 has 32 divisors (see below), whose sum is σ = 62493167520. Its totient is φ = 9397463040.

The previous prime is 29699907901. The next prime is 29699907971. The reversal of 29699907918 is 81970999692.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1622403 + ... + 1640606.

It is an arithmetic number, because the mean of its divisors is an integer number (1952911485).

Almost surely, 2^29699907918 is an apocalyptic number.

29699907918 is an abundant number, since it is smaller than the sum of its proper divisors (32793259602).

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

29699907918 is a wasteful number, since it uses less digits than its factorization.

29699907918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263092.

The product of its (nonzero) digits is 39680928, while the sum is 69.

The spelling of 29699907918 in words is "twenty-nine billion, six hundred ninety-nine million, nine hundred seven thousand, nine hundred eighteen".