29997500648842 has 16 divisors (see below), whose sum is σ = 46548726417000. Its totient is φ = 14481278078400.

The previous prime is 29997500648821. The next prime is 29997500648861. The reversal of 29997500648842 is 24884600579992.

It can be written as a sum of positive squares in 4 ways, for example, as 29443114674801 + 554385974041 = 5426151^2 + 744571^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 1782909 + ... + 7948192.

Almost surely, 2^{29997500648842} is an apocalyptic number.

29997500648842 is a deficient number, since it is larger than the sum of its proper divisors (16551225768158).

29997500648842 is a wasteful number, since it uses less digits than its factorization.

29997500648842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9784281.

The product of its (nonzero) digits is 627056640, while the sum is 73.

The spelling of 29997500648842 in words is "twenty-nine trillion, nine hundred ninety-seven billion, five hundred million, six hundred forty-eight thousand, eight hundred forty-two".