690288206676 has 24 divisors (see below), whose sum is σ = 1705417922880. Its totient is φ = 216561005952.

The previous prime is 690288206519. The next prime is 690288206677. The reversal of 690288206676 is 676602882096.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690288206677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1691882656 + ... + 1691883063.

It is an arithmetic number, because the mean of its divisors is an integer number (71059080120).

Almost surely, 2^690288206676 is an apocalyptic number.

It is an amenable number.

690288206676 is an abundant number, since it is smaller than the sum of its proper divisors (1015129716204).

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

690288206676 is a wasteful number, since it uses less digits than its factorization.

690288206676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383765743 (or 3383765741 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 60.

The spelling of 690288206676 in words is "six hundred ninety billion, two hundred eighty-eight million, two hundred six thousand, six hundred seventy-six".