29309390961 has 8 divisors (see below), whose sum is σ = 39910660224. Its totient is φ = 19123857840.

The previous prime is 29309390953. The next prime is 29309390963. The reversal of 29309390961 is 16909390392.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29309390961 - 2³ = 29309390953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29309390963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103933870 + ... + 103934151.

It is an arithmetic number, because the mean of its divisors is an integer number (4988832528).

Almost surely, 2^29309390961 is an apocalyptic number.

It is an amenable number.

29309390961 is a deficient number, since it is larger than the sum of its proper divisors (10601269263).

29309390961 is a wasteful number, since it uses less digits than its factorization.

29309390961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207868071.

The product of its (nonzero) digits is 708588, while the sum is 51.

The spelling of 29309390961 in words is "twenty-nine billion, three hundred nine million, three hundred ninety thousand, nine hundred sixty-one".