690471254916 has 243 divisors, whose sum is σ = 1902843257679. Its totient is φ = 211073579136.

The previous prime is 690471254911. The next prime is 690471254923. The reversal of 690471254916 is 619452174096.

The square root of 690471254916 is 830946.

It is a perfect power (a square), and thus also a powerful number.

690471254916 is a `hidden beast` number, since 6 + 90 + 4 + 7 + 1 + 2 + 549 + 1 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 547224144516 + 143247110400 = 739746^2 + 378480^2 .

It is not an unprimeable number, because it can be changed into a prime (690471254911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 3504930130 + ... + 3504930326.

Almost surely, 2^690471254916 is an apocalyptic number.

690471254916 is the 830946-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690471254916

690471254916 is an abundant number, since it is smaller than the sum of its proper divisors (1212372002763).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690471254916 is a wasteful number, since it uses less digits than its factorization.

690471254916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 690471254916 in words is "six hundred ninety billion, four hundred seventy-one million, two hundred fifty-four thousand, nine hundred sixteen".