21074730602177 has 16 divisors (see below), whose sum is σ = 25359988915200. Its totient is φ = 17108637633360.

The previous prime is 21074730602173. The next prime is 21074730602203. The reversal of 21074730602177 is 77120603747012.

It is not a de Polignac number, because 21074730602177 - 2² = 21074730602173 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21074730602173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21166349 + ... + 22139642.

It is an arithmetic number, because the mean of its divisors is an integer number (1584999307200).

Almost surely, 2^{21074730602177} is an apocalyptic number.

It is an amenable number.

21074730602177 is a deficient number, since it is larger than the sum of its proper divisors (4285258313023).

21074730602177 is a wasteful number, since it uses less digits than its factorization.

21074730602177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43309676.

The product of its (nonzero) digits is 691488, while the sum is 47.

The spelling of 21074730602177 in words is "twenty-one trillion, seventy-four billion, seven hundred thirty million, six hundred two thousand, one hundred seventy-seven".