1252559986090 has 128 divisors (see below), whose sum is σ = 2747529953280. Its totient is φ = 401803573248.

The previous prime is 1252559986087. The next prime is 1252559986099. The reversal of 1252559986090 is 906899552521.

It is not an unprimeable number, because it can be changed into a prime (1252559986099) 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 63 ways as a sum of consecutive naturals, for example, 169421434 + ... + 169428826.

It is an arithmetic number, because the mean of its divisors is an integer number (21465077760).

Almost surely, 2^{1252559986090} is an apocalyptic number.

1252559986090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252559986090 is an abundant number, since it is smaller than the sum of its proper divisors (1494969967190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1252559986090 is a wasteful number, since it uses less digits than its factorization.

1252559986090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9716.

The product of its (nonzero) digits is 17496000, while the sum is 61.

The spelling of 1252559986090 in words is "one trillion, two hundred fifty-two billion, five hundred fifty-nine million, nine hundred eighty-six thousand, ninety".