2170375072840 has 32 divisors (see below), whose sum is σ = 5258985754680. Its totient is φ = 801369257472.

The previous prime is 2170375072781. The next prime is 2170375072841. The reversal of 2170375072840 is 482705730712.

It can be written as a sum of positive squares in 4 ways, for example, as 928706125636 + 1241668947204 = 963694^2 + 1114302^2 .

It is not an unprimeable number, because it can be changed into a prime (2170375072841) 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, 2086898589 + ... + 2086899628.

Almost surely, 2^{2170375072840} is an apocalyptic number.

2170375072840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2170375072840 is an abundant number, since it is smaller than the sum of its proper divisors (3088610681840).

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

2170375072840 is a wasteful number, since it uses less digits than its factorization.

2170375072840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173798241 (or 4173798237 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 46.

The spelling of 2170375072840 in words is "two trillion, one hundred seventy billion, three hundred seventy-five million, seventy-two thousand, eight hundred forty".