1252858861768 has 32 divisors (see below), whose sum is σ = 2488630367160. Its totient is φ = 589263713280.

The previous prime is 1252858861763. The next prime is 1252858861781. The reversal of 1252858861768 is 8671688582521.

It can be written as a sum of positive squares in 4 ways, for example, as 614997871524 + 637860990244 = 784218^2 + 798662^2 .

It is not an unprimeable number, because it can be changed into a prime (1252858861763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2221971 + ... + 2728162.

Almost surely, 2^{1252858861768} is an apocalyptic number.

It is an amenable number.

1252858861768 is a deficient number, since it is larger than the sum of its proper divisors (1235771505392).

1252858861768 is a wasteful number, since it uses less digits than its factorization.

1252858861768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4952017 (or 4952013 counting only the distinct ones).

The product of its digits is 103219200, while the sum is 67.

The spelling of 1252858861768 in words is "one trillion, two hundred fifty-two billion, eight hundred fifty-eight million, eight hundred sixty-one thousand, seven hundred sixty-eight".