1077525386681 has 2 divisors, whose sum is σ = 1077525386682. Its totient is φ = 1077525386680.

The previous prime is 1077525386659. The next prime is 1077525386699. The reversal of 1077525386681 is 1866835257701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 539196490000 + 538328896681 = 734300^2 + 733709^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1077525386681 is a prime.

It is a super-2 number, since 2×1077525386681² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1077525386681.

It is not a weakly prime, because it can be changed into another prime (1077525386621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538762693340 + 538762693341.

It is an arithmetic number, because the mean of its divisors is an integer number (538762693341).

Almost surely, 2^{1077525386681} is an apocalyptic number.

It is an amenable number.

1077525386681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1077525386681 is an equidigital number, since it uses as much as digits as its factorization.

1077525386681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16934400, while the sum is 59.

The spelling of 1077525386681 in words is "one trillion, seventy-seven billion, five hundred twenty-five million, three hundred eighty-six thousand, six hundred eighty-one".