2072785040089 has 3 divisors (see below), whose sum is σ = 2072786479807. Its totient is φ = 2072783600372.

The previous prime is 2072785040087. The next prime is 2072785040111. The reversal of 2072785040089 is 9800405872702.

It is a happy number.

The square root of 2072785040089 is 1439717.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2060617185225 + 12167854864 = 1435485^2 + 110308^2 .

It is not a de Polignac number, because 2072785040089 - 2¹ = 2072785040087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2072785040087) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 719859 + ... + 2159575.

Almost surely, 2^{2072785040089} is an apocalyptic number.

2072785040089 is the 1439717-th square number.

2072785040089 is the 719859-th centered octagonal number.

It is an amenable number.

2072785040089 is a deficient number, since it is larger than the sum of its proper divisors (1439718).

2072785040089 is an frugal number, since it uses more digits than its factorization.

2072785040089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2879434 (or 1439717 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 2072785040089 in words is "two trillion, seventy-two billion, seven hundred eighty-five million, forty thousand, eighty-nine".