29997974079806 has 4 divisors (see below), whose sum is σ = 44996961119712. Its totient is φ = 14998987039902.

The previous prime is 29997974079739. The next prime is 29997974079839. The reversal of 29997974079806 is 60897047979992.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7499493519950 + ... + 7499493519953.

It is an arithmetic number, because the mean of its divisors is an integer number (11249240279928).

Almost surely, 2^{29997974079806} is an apocalyptic number.

29997974079806 is a deficient number, since it is larger than the sum of its proper divisors (14998987039906).

29997974079806 is a wasteful number, since it uses less digits than its factorization.

29997974079806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14998987039905.

The product of its (nonzero) digits is 7777461888, while the sum is 86.

The spelling of 29997974079806 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred seventy-four million, seventy-nine thousand, eight hundred six".