694686857004 has 144 divisors (see below), whose sum is σ = 2111586140160. Its totient is φ = 196918918560.

The previous prime is 694686856961. The next prime is 694686857023. The reversal of 694686857004 is 400758686496.

694686857004 is a `hidden beast` number, since 69 + 468 + 68 + 57 + 0 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 155269 + ... + 1188899.

It is an arithmetic number, because the mean of its divisors is an integer number (14663792640).

Almost surely, 2^694686857004 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 694686857004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1055793070080).

694686857004 is an abundant number, since it is smaller than the sum of its proper divisors (1416899283156).

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

694686857004 is a wasteful number, since it uses less digits than its factorization.

694686857004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033785 (or 1033770 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 63.

The spelling of 694686857004 in words is "six hundred ninety-four billion, six hundred eighty-six million, eight hundred fifty-seven thousand, four".