17020420500772 has 24 divisors (see below), whose sum is σ = 32090217953976. Its totient is φ = 7852328498688.

The previous prime is 17020420500709. The next prime is 17020420500773. The reversal of 17020420500772 is 27700502402071.

17020420500772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1403807910976 + 15616612589796 = 1184824^2 + 3951786^2 .

It is not an unprimeable number, because it can be changed into a prime (17020420500773) 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, 67585483 + ... + 67836850.

It is an arithmetic number, because the mean of its divisors is an integer number (1337092414749).

Almost surely, 2^{17020420500772} is an apocalyptic number.

It is an amenable number.

17020420500772 is a deficient number, since it is larger than the sum of its proper divisors (15069797453204).

17020420500772 is a wasteful number, since it uses less digits than its factorization.

17020420500772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135424767 (or 135424765 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 37.

The spelling of 17020420500772 in words is "seventeen trillion, twenty billion, four hundred twenty million, five hundred thousand, seven hundred seventy-two".