690208662704 has 60 divisors (see below), whose sum is σ = 1471165157112. Its totient is φ = 313676102080.

The previous prime is 690208662691. The next prime is 690208662761. The reversal of 690208662704 is 407266802096.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121235282 + ... + 121240974.

Almost surely, 2^690208662704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690208662704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735582578556).

690208662704 is an abundant number, since it is smaller than the sum of its proper divisors (780956494408).

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

690208662704 is an frugal number, since it uses more digits than its factorization.

690208662704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11427 (or 5706 counting only the distinct ones).

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

The spelling of 690208662704 in words is "six hundred ninety billion, two hundred eight million, six hundred sixty-two thousand, seven hundred four".