29801947501457 has 8 divisors (see below), whose sum is σ = 30138445633320. Its totient is φ = 29465485920640.

The previous prime is 29801947501429. The next prime is 29801947501499. The reversal of 29801947501457 is 75410574910892.

It is a Cunningham number, because it is equal to 5459116²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 29801947501456 = 1^2 + 5459116^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29801947501457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29801947501457.

It is not an unprimeable number, because it can be changed into a prime (29801947509457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7496198 + ... + 10760895.

It is an arithmetic number, because the mean of its divisors is an integer number (3767305704165).

Almost surely, 2^{29801947501457} is an apocalyptic number.

It is an amenable number.

29801947501457 is a deficient number, since it is larger than the sum of its proper divisors (336498131863).

29801947501457 is a wasteful number, since it uses less digits than its factorization.

29801947501457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18275523.

The product of its (nonzero) digits is 25401600, while the sum is 62.

The spelling of 29801947501457 in words is "twenty-nine trillion, eight hundred one billion, nine hundred forty-seven million, five hundred one thousand, four hundred fifty-seven".