2122764945 has 32 divisors (see below), whose sum is σ = 3887751168. Its totient is φ = 968875968.

The previous prime is 2122764901. The next prime is 2122764947. The reversal of 2122764945 is 5494672212.

It is a happy number.

It is not a de Polignac number, because 2122764945 - 2⁷ = 2122764817 is a prime.

It is a super-2 number, since 2×2122764945² = 9012262023441706050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2122764897 and 2122764906.

It is not an unprimeable number, because it can be changed into a prime (2122764947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52312 + ... + 83558.

It is an arithmetic number, because the mean of its divisors is an integer number (121492224).

Almost surely, 2^2122764945 is an apocalyptic number.

It is an amenable number.

2122764945 is a deficient number, since it is larger than the sum of its proper divisors (1764986223).

2122764945 is a wasteful number, since it uses less digits than its factorization.

2122764945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31909.

The product of its digits is 241920, while the sum is 42.

The square root of 2122764945 is about 46073.4733333618. The cubic root of 2122764945 is about 1285.1898955787.

The spelling of 2122764945 in words is "two billion, one hundred twenty-two million, seven hundred sixty-four thousand, nine hundred forty-five".