29927640888601 has 4 divisors (see below), whose sum is σ = 29928966727012. Its totient is φ = 29926315050192.

The previous prime is 29927640888589. The next prime is 29927640888619. The reversal of 29927640888601 is 10688804672992.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7798190290576 + 22129450598025 = 2792524^2 + 4704195^2 .

It is a cyclic number.

It is not a de Polignac number, because 29927640888601 - 2⁴¹ = 27728617633049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29927640880601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662885346 + ... + 662930491.

It is an arithmetic number, because the mean of its divisors is an integer number (7482241681753).

Almost surely, 2^{29927640888601} is an apocalyptic number.

It is an amenable number.

29927640888601 is a deficient number, since it is larger than the sum of its proper divisors (1325838411).

29927640888601 is a wasteful number, since it uses less digits than its factorization.

29927640888601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325838410.

The product of its (nonzero) digits is 167215104, while the sum is 70.

The spelling of 29927640888601 in words is "twenty-nine trillion, nine hundred twenty-seven billion, six hundred forty million, eight hundred eighty-eight thousand, six hundred one".