29806194840247 has 32 divisors (see below), whose sum is σ = 35442472386560. Its totient is φ = 24527604608640.

The previous prime is 29806194840221. The next prime is 29806194840287. The reversal of 29806194840247 is 74204849160892.

It is not a de Polignac number, because 29806194840247 - 2⁷ = 29806194840119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29806194840287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 506973529 + ... + 507032317.

It is an arithmetic number, because the mean of its divisors is an integer number (1107577262080).

Almost surely, 2^{29806194840247} is an apocalyptic number.

29806194840247 is a deficient number, since it is larger than the sum of its proper divisors (5636277546313).

29806194840247 is a wasteful number, since it uses less digits than its factorization.

29806194840247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77351.

The product of its (nonzero) digits is 55738368, while the sum is 64.

The spelling of 29806194840247 in words is "twenty-nine trillion, eight hundred six billion, one hundred ninety-four million, eight hundred forty thousand, two hundred forty-seven".