1052777527781 has 12 divisors (see below), whose sum is σ = 1226095330572. Its totient is φ = 901322811648.

The previous prime is 1052777527771. The next prime is 1052777527801. The reversal of 1052777527781 is 1877257772501.

It can be written as a sum of positive squares in 2 ways, for example, as 361940608225 + 690836919556 = 601615^2 + 831166^2 .

It is not a de Polignac number, because 1052777527781 - 2¹⁴ = 1052777511397 is a prime.

It is a super-2 number, since 2×1052777527781² (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 1052777527781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052777527721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12552140 + ... + 12635733.

It is an arithmetic number, because the mean of its divisors is an integer number (102174610881).

Almost surely, 2^{1052777527781} is an apocalyptic number.

It is an amenable number.

1052777527781 is a deficient number, since it is larger than the sum of its proper divisors (173317802791).

1052777527781 is an equidigital number, since it uses as much as digits as its factorization.

1052777527781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25188740 (or 25188733 counting only the distinct ones).

The product of its (nonzero) digits is 13445600, while the sum is 59.

The spelling of 1052777527781 in words is "one trillion, fifty-two billion, seven hundred seventy-seven million, five hundred twenty-seven thousand, seven hundred eighty-one".