1927768834 has 4 divisors (see below), whose sum is σ = 2891653254. Its totient is φ = 963884416.

The previous prime is 1927768811. The next prime is 1927768853. The reversal of 1927768834 is 4388677291.

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., 1909253025 + 18515809 = 43695^2 + 4303^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 481942207 + ... + 481942210.

Almost surely, 2^1927768834 is an apocalyptic number.

1927768834 is a deficient number, since it is larger than the sum of its proper divisors (963884420).

1927768834 is an equidigital number, since it uses as much as digits as its factorization.

1927768834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963884419.

The product of its digits is 4064256, while the sum is 55.

The square root of 1927768834 is about 43906.3643905983. The cubic root of 1927768834 is about 1244.5671057245.

The spelling of 1927768834 in words is "one billion, nine hundred twenty-seven million, seven hundred sixty-eight thousand, eight hundred thirty-four".