278376896252 has 144 divisors (see below), whose sum is σ = 618126471648. Its totient is φ = 108719976960.

The previous prime is 278376896219. The next prime is 278376896269. The reversal of 278376896252 is 252698673872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86424002 + ... + 86427222.

It is an arithmetic number, because the mean of its divisors is an integer number (4292544942).

Almost surely, 2^278376896252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 278376896252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309063235824).

278376896252 is an abundant number, since it is smaller than the sum of its proper divisors (339749575396).

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

278376896252 is a wasteful number, since it uses less digits than its factorization.

278376896252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676 (or 3667 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 65.

The spelling of 278376896252 in words is "two hundred seventy-eight billion, three hundred seventy-six million, eight hundred ninety-six thousand, two hundred fifty-two".