2972786545 has 4 divisors (see below), whose sum is σ = 3567343860. Its totient is φ = 2378229232.

The previous prime is 2972786513. The next prime is 2972786561. The reversal of 2972786545 is 5456872792.

2972786545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1408425841 + 1564360704 = 37529^2 + 39552^2 .

It is a cyclic number.

It is not a de Polignac number, because 2972786545 - 2⁵ = 2972786513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297278650 + ... + 297278659.

It is an arithmetic number, because the mean of its divisors is an integer number (891835965).

Almost surely, 2^2972786545 is an apocalyptic number.

It is an amenable number.

2972786545 is a deficient number, since it is larger than the sum of its proper divisors (594557315).

2972786545 is an equidigital number, since it uses as much as digits as its factorization.

2972786545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594557314.

The product of its digits is 8467200, while the sum is 55.

The square root of 2972786545 is about 54523.2660888909. The cubic root of 2972786545 is about 1437.8753622913.

The spelling of 2972786545 in words is "two billion, nine hundred seventy-two million, seven hundred eighty-six thousand, five hundred forty-five".