1252967942878 has 48 divisors (see below), whose sum is σ = 1975325806080. Its totient is φ = 595969980480.

The previous prime is 1252967942873. The next prime is 1252967942911. The reversal of 1252967942878 is 8782497692521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252967942873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26582700 + ... + 26629792.

It is an arithmetic number, because the mean of its divisors is an integer number (41152620960).

Almost surely, 2^{1252967942878} is an apocalyptic number.

1252967942878 is a deficient number, since it is larger than the sum of its proper divisors (722357863202).

1252967942878 is a wasteful number, since it uses less digits than its factorization.

1252967942878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47393 (or 47362 counting only the distinct ones).

The product of its digits is 243855360, while the sum is 70.

The spelling of 1252967942878 in words is "one trillion, two hundred fifty-two billion, nine hundred sixty-seven million, nine hundred forty-two thousand, eight hundred seventy-eight".