699124046634 has 96 divisors (see below), whose sum is σ = 1687887648720. Its totient is φ = 207654644736.

The previous prime is 699124046633. The next prime is 699124046641. The reversal of 699124046634 is 436640421996.

699124046634 is a `hidden beast` number, since 69 + 91 + 2 + 4 + 0 + 466 + 34 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 65853225 + 699058193409 = 8115^2 + 836097^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (699124046633) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51410724 + ... + 51424320.

Almost surely, 2^699124046634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 699124046634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (843943824360).

699124046634 is an abundant number, since it is smaller than the sum of its proper divisors (988763602086).

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

699124046634 is a wasteful number, since it uses less digits than its factorization.

699124046634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21224 (or 21221 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

The spelling of 699124046634 in words is "six hundred ninety-nine billion, one hundred twenty-four million, forty-six thousand, six hundred thirty-four".