278763367872 has 112 divisors (see below), whose sum is σ = 804754076544. Its totient is φ = 84458880000.

The previous prime is 278763367843. The next prime is 278763367877.

278763367872 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278763367877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20904247 + ... + 20917577.

Almost surely, 2^278763367872 is an apocalyptic number.

278763367872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

278763367872 is an abundant number, since it is smaller than the sum of its proper divisors (525990708672).

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

278763367872 is a wasteful number, since it uses less digits than its factorization.

278763367872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23258 (or 23248 counting only the distinct ones).

The product of its digits is 199148544, while the sum is 66.

The spelling of 278763367872 in words is "two hundred seventy-eight billion, seven hundred sixty-three million, three hundred sixty-seven thousand, eight hundred seventy-two".