694254775872 has 224 divisors, whose sum is σ = 2150405452800. Its totient is φ = 193538967552.

The previous prime is 694254775861. The next prime is 694254775873. The reversal of 694254775872 is 278577452496.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (694254775873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58884154 + ... + 58895942.

Almost surely, 2^694254775872 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 694254775872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1075202726400).

694254775872 is an abundant number, since it is smaller than the sum of its proper divisors (1456150676928).

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

694254775872 is a wasteful number, since it uses less digits than its factorization.

694254775872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12873 (or 12863 counting only the distinct ones).

The product of its digits is 237081600, while the sum is 66.

The spelling of 694254775872 in words is "six hundred ninety-four billion, two hundred fifty-four million, seven hundred seventy-five thousand, eight hundred seventy-two".