1020568693825 has 24 divisors (see below), whose sum is σ = 1330604713080. Its totient is φ = 775378329600.

The previous prime is 1020568693817. The next prime is 1020568693847. The reversal of 1020568693825 is 5283968650201.

1020568693825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 1010232²+1.

It can be written as a sum of positive squares in 12 ways, for example, as 763309752976 + 257258940849 = 873676^2 + 507207^2 .

It is not a de Polignac number, because 1020568693825 - 2³ = 1020568693817 is a prime.

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, 11494144 + ... + 11582593.

It is an arithmetic number, because the mean of its divisors is an integer number (55441863045).

Almost surely, 2^{1020568693825} is an apocalyptic number.

It is an amenable number.

1020568693825 is a deficient number, since it is larger than the sum of its proper divisors (310036019255).

1020568693825 is a wasteful number, since it uses less digits than its factorization.

1020568693825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23076837 (or 23076832 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 1020568693825 in words is "one trillion, twenty billion, five hundred sixty-eight million, six hundred ninety-three thousand, eight hundred twenty-five".