4819778690 has 8 divisors (see below), whose sum is σ = 8675601660. Its totient is φ = 1927911472.

The previous prime is 4819778609. The next prime is 4819778699. The reversal of 4819778690 is 968779184.

It can be written as a sum of positive squares in 2 ways, for example, as 4694853361 + 124925329 = 68519^2 + 11177^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4819778690² = 46460533241156232200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4819778699) 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, 240988925 + ... + 240988944.

Almost surely, 2^4819778690 is an apocalyptic number.

4819778690 is a deficient number, since it is larger than the sum of its proper divisors (3855822970).

4819778690 is a wasteful number, since it uses less digits than its factorization.

4819778690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481977876.

The product of its (nonzero) digits is 6096384, while the sum is 59.

The square root of 4819778690 is about 69424.6259622621. The cubic root of 4819778690 is about 1689.1790990032.

The spelling of 4819778690 in words is "four billion, eight hundred nineteen million, seven hundred seventy-eight thousand, six hundred ninety".