2512120391089 has 3 divisors (see below), whose sum is σ = 2512121976057. Its totient is φ = 2512118806122.

The previous prime is 2512120391083. The next prime is 2512120391093. The reversal of 2512120391089 is 9801930212152.

The square root of 2512120391089 is 1584967.

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 is not a de Polignac number, because 2512120391089 - 2¹³ = 2512120382897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2512120391083) 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, 792484 + ... + 2377450.

It is an arithmetic number, because the mean of its divisors is an integer number (837373992019).

Almost surely, 2^{2512120391089} is an apocalyptic number.

2512120391089 is the 1584967-th square number.

2512120391089 is the 792484-th centered octagonal number.

It is an amenable number.

2512120391089 is a deficient number, since it is larger than the sum of its proper divisors (1584968).

2512120391089 is an frugal number, since it uses more digits than its factorization.

2512120391089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3169934 (or 1584967 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 43.

The spelling of 2512120391089 in words is "two trillion, five hundred twelve billion, one hundred twenty million, three hundred ninety-one thousand, eighty-nine".