1972302272209 has 4 divisors (see below), whose sum is σ = 1972640058880. Its totient is φ = 1971964485540.

The previous prime is 1972302272201. The next prime is 1972302272263. The reversal of 1972302272209 is 9022722032791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1972302272209 - 2³ = 1972302272201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1972302272201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168884577 + ... + 168896254.

It is an arithmetic number, because the mean of its divisors is an integer number (493160014720).

Almost surely, 2^{1972302272209} is an apocalyptic number.

It is an amenable number.

1972302272209 is a deficient number, since it is larger than the sum of its proper divisors (337786671).

1972302272209 is an equidigital number, since it uses as much as digits as its factorization.

1972302272209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337786670.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 1972302272209 in words is "one trillion, nine hundred seventy-two billion, three hundred two million, two hundred seventy-two thousand, two hundred nine".