1252878878 has 8 divisors (see below), whose sum is σ = 1910127000. Its totient is φ = 616169880.

The previous prime is 1252878853. The next prime is 1252878881. The reversal of 1252878878 is 8788782521.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5134628 + ... + 5134871.

It is an arithmetic number, because the mean of its divisors is an integer number (238765875).

Almost surely, 2^1252878878 is an apocalyptic number.

1252878878 is a deficient number, since it is larger than the sum of its proper divisors (657248122).

1252878878 is a wasteful number, since it uses less digits than its factorization.

1252878878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10269562.

The product of its digits is 4014080, while the sum is 56.

The square root of 1252878878 is about 35396.0291275731. The cubic root of 1252878878 is about 1078.0436915709.

The spelling of 1252878878 in words is "one billion, two hundred fifty-two million, eight hundred seventy-eight thousand, eight hundred seventy-eight".