278750048668 has 72 divisors (see below), whose sum is σ = 604898448000. Its totient is φ = 110052820800.

The previous prime is 278750048657. The next prime is 278750048711. The reversal of 278750048668 is 866840057872.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2302243 + ... + 2420293.

Almost surely, 2^278750048668 is an apocalyptic number.

278750048668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 278750048668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302449224000).

278750048668 is an abundant number, since it is smaller than the sum of its proper divisors (326148399332).

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

278750048668 is a wasteful number, since it uses less digits than its factorization.

278750048668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118587 (or 118572 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 61.

The spelling of 278750048668 in words is "two hundred seventy-eight billion, seven hundred fifty million, forty-eight thousand, six hundred sixty-eight".