1252878879 has 8 divisors (see below), whose sum is σ = 1909148800. Its totient is φ = 715930776.

The previous prime is 1252878853. The next prime is 1252878881. The reversal of 1252878879 is 9788782521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1252878879 - 2⁷ = 1252878751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252878889) 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, 29830429 + ... + 29830470.

It is an arithmetic number, because the mean of its divisors is an integer number (238643600).

Almost surely, 2^1252878879 is an apocalyptic number.

1252878879 is a deficient number, since it is larger than the sum of its proper divisors (656269921).

1252878879 is an equidigital number, since it uses as much as digits as its factorization.

1252878879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59660909.

The product of its digits is 4515840, while the sum is 57.

The square root of 1252878879 is about 35396.0291416989. The cubic root of 1252878879 is about 1078.0436918577.

The spelling of 1252878879 in words is "one billion, two hundred fifty-two million, eight hundred seventy-eight thousand, eight hundred seventy-nine".