694264421376 has 616 divisors, whose sum is σ = 2262429555200. Its totient is φ = 212034723840.

The previous prime is 694264421341. The next prime is 694264421399. The reversal of 694264421376 is 673124462496.

694264421376 is a `hidden beast` number, since 6 + 9 + 4 + 264 + 4 + 2 + 1 + 376 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 439685355 + ... + 439686933.

Almost surely, 2^694264421376 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 694264421376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1131214777600).

694264421376 is an abundant number, since it is smaller than the sum of its proper divisors (1568165133824).

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

694264421376 is a wasteful number, since it uses less digits than its factorization.

694264421376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667 (or 1634 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 54.

The spelling of 694264421376 in words is "six hundred ninety-four billion, two hundred sixty-four million, four hundred twenty-one thousand, three hundred seventy-six".