697213357344 has 576 divisors, whose sum is σ = 2481750835200. Its totient is φ = 181141069824.

The previous prime is 697213357307. The next prime is 697213357349. The reversal of 697213357344 is 443753312796.

697213357344 is a `hidden beast` number, since 6 + 9 + 7 + 21 + 3 + 3 + 573 + 44 = 666.

It is a super-2 number, since 2×697213357344² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (697213357349) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 127249197 + ... + 127254675.

It is an arithmetic number, because the mean of its divisors is an integer number (4308595200).

Almost surely, 2^697213357344 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 697213357344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240875417600).

697213357344 is an abundant number, since it is smaller than the sum of its proper divisors (1784537477856).

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

697213357344 is a wasteful number, since it uses less digits than its factorization.

697213357344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5645 (or 5634 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 54.

The spelling of 697213357344 in words is "six hundred ninety-seven billion, two hundred thirteen million, three hundred fifty-seven thousand, three hundred forty-four".