697006745856 has 216 divisors, whose sum is σ = 2108490325760. Its totient is φ = 221153587200.

The previous prime is 697006745843. The next prime is 697006745909. The reversal of 697006745856 is 658547600796.

697006745856 is a `hidden beast` number, since 6 + 9 + 70 + 0 + 67 + 458 + 56 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 697006745793 and 697006745802.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4276875 + ... + 4436853.

Almost surely, 2^697006745856 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 697006745856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1054245162880).

697006745856 is an abundant number, since it is smaller than the sum of its proper divisors (1411483579904).

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

697006745856 is a wasteful number, since it uses less digits than its factorization.

697006745856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160093 (or 160076 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 63.

The spelling of 697006745856 in words is "six hundred ninety-seven billion, six million, seven hundred forty-five thousand, eight hundred fifty-six".