2819764634 has 4 divisors (see below), whose sum is σ = 4229646954. Its totient is φ = 1409882316.

The previous prime is 2819764621. The next prime is 2819764637. The reversal of 2819764634 is 4364679182.

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

It can be written as a sum of positive squares in only one way, i.e., 1722499009 + 1097265625 = 41503^2 + 33125^2 .

It is not an unprimeable number, because it can be changed into a prime (2819764637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704941157 + ... + 704941160.

Almost surely, 2^2819764634 is an apocalyptic number.

2819764634 is a deficient number, since it is larger than the sum of its proper divisors (1409882320).

2819764634 is a wasteful number, since it uses less digits than its factorization.

2819764634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409882319.

The product of its digits is 1741824, while the sum is 50.

The square root of 2819764634 is about 53101.4560440672. The cubic root of 2819764634 is about 1412.7683375023.

The spelling of 2819764634 in words is "two billion, eight hundred nineteen million, seven hundred sixty-four thousand, six hundred thirty-four".