1052781757523 has 2 divisors, whose sum is σ = 1052781757524. Its totient is φ = 1052781757522.

The previous prime is 1052781757513. The next prime is 1052781757597. The reversal of 1052781757523 is 3257571872501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1052781757523 - 2⁸ = 1052781757267 is a prime.

It is a super-2 number, since 2×1052781757523² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1052781757513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526390878761 + 526390878762.

It is an arithmetic number, because the mean of its divisors is an integer number (526390878762).

Almost surely, 2^{1052781757523} is an apocalyptic number.

1052781757523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052781757523 is an equidigital number, since it uses as much as digits as its factorization.

1052781757523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4116000, while the sum is 53.

The spelling of 1052781757523 in words is "one trillion, fifty-two billion, seven hundred eighty-one million, seven hundred fifty-seven thousand, five hundred twenty-three".