699342606179712 has 640 divisors, whose sum is σ = 2319616663737120. Its totient is φ = 207367431782400.

The previous prime is 699342606179671. The next prime is 699342606179717. The reversal of 699342606179712 is 217971606243996.

699342606179712 is a `hidden beast` number, since 6 + 9 + 9 + 3 + 4 + 2 + 606 + 1 + 7 + 9 + 7 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699342606179717) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1342426678 + ... + 1342947530.

Almost surely, 2^{699342606179712} 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 699342606179712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1159808331868560).

699342606179712 is an abundant number, since it is smaller than the sum of its proper divisors (1620274057557408).

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

699342606179712 is a wasteful number, since it uses less digits than its factorization.

699342606179712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521144 (or 521123 counting only the distinct ones).

The product of its (nonzero) digits is 370355328, while the sum is 72.

The spelling of 699342606179712 in words is "six hundred ninety-nine trillion, three hundred forty-two billion, six hundred six million, one hundred seventy-nine thousand, seven hundred twelve".