1255782588890 has 16 divisors (see below), whose sum is σ = 2321500786632. Its totient is φ = 488737007424.

The previous prime is 1255782588857. The next prime is 1255782588899. The reversal of 1255782588890 is 988852875521.

It can be written as a sum of positive squares in 4 ways, for example, as 1237698525361 + 18084063529 = 1112519^2 + 134477^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1255782588890.

It is not an unprimeable number, because it can be changed into a prime (1255782588899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1697003129 + ... + 1697003868.

Almost surely, 2^{1255782588890} is an apocalyptic number.

1255782588890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255782588890 is a deficient number, since it is larger than the sum of its proper divisors (1065718197742).

1255782588890 is a wasteful number, since it uses less digits than its factorization.

1255782588890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394007041.

The product of its (nonzero) digits is 129024000, while the sum is 68.

The spelling of 1255782588890 in words is "one trillion, two hundred fifty-five billion, seven hundred eighty-two million, five hundred eighty-eight thousand, eight hundred ninety".