690414489688 has 64 divisors (see below), whose sum is σ = 1615335909120. Its totient is φ = 268762665600.

The previous prime is 690414489659. The next prime is 690414489707. The reversal of 690414489688 is 886984414096.

It is a super-2 number, since 2×690414489688² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242770 + ... + 1199902.

It is an arithmetic number, because the mean of its divisors is an integer number (25239623580).

Almost surely, 2^690414489688 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 690414489688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (807667954560).

690414489688 is an abundant number, since it is smaller than the sum of its proper divisors (924921419432).

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

690414489688 is a wasteful number, since it uses less digits than its factorization.

690414489688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958328 (or 958324 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 67.

The spelling of 690414489688 in words is "six hundred ninety billion, four hundred fourteen million, four hundred eighty-nine thousand, six hundred eighty-eight".