697541245128 has 384 divisors, whose sum is σ = 2526479155200. Its totient is φ = 168661440000.

The previous prime is 697541245127. The next prime is 697541245211. The reversal of 697541245128 is 821542145796.

697541245128 is a `hidden beast` number, since 6 + 9 + 7 + 541 + 24 + 51 + 28 = 666.

It is not an unprimeable number, because it can be changed into a prime (697541245127) 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 95 ways as a sum of consecutive naturals, for example, 3768753 + ... + 3949503.

It is an arithmetic number, because the mean of its divisors is an integer number (6579372800).

Almost surely, 2^697541245128 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 697541245128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1263239577600).

697541245128 is an abundant number, since it is smaller than the sum of its proper divisors (1828937910072).

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

697541245128 is a wasteful number, since it uses less digits than its factorization.

697541245128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180833 (or 180826 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 697541245128 in words is "six hundred ninety-seven billion, five hundred forty-one million, two hundred forty-five thousand, one hundred twenty-eight".