689339076400 has 240 divisors, whose sum is σ = 1846491539200. Its totient is φ = 245588889600.

The previous prime is 689339076389. The next prime is 689339076421. The reversal of 689339076400 is 4670933986.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56252674 + ... + 56264926.

Almost surely, 2^689339076400 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 689339076400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (923245769600).

689339076400 is an abundant number, since it is smaller than the sum of its proper divisors (1157152462800).

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

689339076400 is a wasteful number, since it uses less digits than its factorization.

689339076400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12664 (or 12653 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 55.

The spelling of 689339076400 in words is "six hundred eighty-nine billion, three hundred thirty-nine million, seventy-six thousand, four hundred".