1077212627581 has 2 divisors, whose sum is σ = 1077212627582. Its totient is φ = 1077212627580.

The previous prime is 1077212627483. The next prime is 1077212627587. The reversal of 1077212627581 is 1857262127701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 979159725625 + 98052901956 = 989525^2 + 313134^2 .

It is a cyclic number.

It is not a de Polignac number, because 1077212627581 - 2¹³ = 1077212619389 is a prime.

It is a super-3 number, since 3×1077212627581³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1077212627587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538606313790 + 538606313791.

It is an arithmetic number, because the mean of its divisors is an integer number (538606313791).

Almost surely, 2^{1077212627581} is an apocalyptic number.

It is an amenable number.

1077212627581 is a deficient number, since it is larger than the sum of its proper divisors (1).

1077212627581 is an equidigital number, since it uses as much as digits as its factorization.

1077212627581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 658560, while the sum is 49.

The spelling of 1077212627581 in words is "one trillion, seventy-seven billion, two hundred twelve million, six hundred twenty-seven thousand, five hundred eighty-one".