2252857481278 has 4 divisors (see below), whose sum is σ = 3379286221920. Its totient is φ = 1126428740638.

The previous prime is 2252857481267. The next prime is 2252857481297. The reversal of 2252857481278 is 8721847582522.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563214370318 + ... + 563214370321.

It is an arithmetic number, because the mean of its divisors is an integer number (844821555480).

Almost surely, 2^{2252857481278} is an apocalyptic number.

2252857481278 is a deficient number, since it is larger than the sum of its proper divisors (1126428740642).

2252857481278 is a wasteful number, since it uses less digits than its factorization.

2252857481278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126428740641.

The product of its digits is 40140800, while the sum is 61.

The spelling of 2252857481278 in words is "two trillion, two hundred fifty-two billion, eight hundred fifty-seven million, four hundred eighty-one thousand, two hundred seventy-eight".