6216789490 has 16 divisors (see below), whose sum is σ = 11191182552. Its totient is φ = 2486502144.

The previous prime is 6216789473. The next prime is 6216789503. The reversal of 6216789490 is 949876126.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3982998321 + 2233791169 = 63111^2 + 47263^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153232 + ... + 189508.

Almost surely, 2^6216789490 is an apocalyptic number.

6216789490 is a deficient number, since it is larger than the sum of its proper divisors (4974393062).

6216789490 is a wasteful number, since it uses less digits than its factorization.

6216789490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53421.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 6216789490 is about 78846.6200290158. The cubic root of 6216789490 is about 1838.7473249459.

The spelling of 6216789490 in words is "six billion, two hundred sixteen million, seven hundred eighty-nine thousand, four hundred ninety".