2017891940970 has 16 divisors (see below), whose sum is σ = 4842940658400. Its totient is φ = 538104517584.

The previous prime is 2017891940957. The next prime is 2017891941047. The reversal of 2017891940970 is 790491987102.

It is a self number, because there is not a number n which added to its sum of digits gives 2017891940970.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33631532320 + ... + 33631532379.

It is an arithmetic number, because the mean of its divisors is an integer number (302683791150).

Almost surely, 2^{2017891940970} is an apocalyptic number.

2017891940970 is an abundant number, since it is smaller than the sum of its proper divisors (2825048717430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2017891940970 is a wasteful number, since it uses less digits than its factorization.

2017891940970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67263064709.

The product of its (nonzero) digits is 2286144, while the sum is 57.

The spelling of 2017891940970 in words is "two trillion, seventeen billion, eight hundred ninety-one million, nine hundred forty thousand, nine hundred seventy".