697789732640 has 192 divisors, whose sum is σ = 2213409058560. Its totient is φ = 200762634240.

The previous prime is 697789732609. The next prime is 697789732649. The reversal of 697789732640 is 46237987796.

It is not an unprimeable number, because it can be changed into a prime (697789732649) 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, 2018255 + ... + 2338574.

It is an arithmetic number, because the mean of its divisors is an integer number (11528172180).

Almost surely, 2^697789732640 is an apocalyptic number.

It is an amenable number.

697789732640 is an abundant number, since it is smaller than the sum of its proper divisors (1515619325920).

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

697789732640 is a wasteful number, since it uses less digits than its factorization.

697789732640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356875 (or 4356867 counting only the distinct ones).

The product of its (nonzero) digits is 192036096, while the sum is 68.

The spelling of 697789732640 in words is "six hundred ninety-seven billion, seven hundred eighty-nine million, seven hundred thirty-two thousand, six hundred forty".