278874339072 has 432 divisors, whose sum is σ = 905241748992. Its totient is φ = 74519470080.

The previous prime is 278874339061. The next prime is 278874339083. The reversal of 278874339072 is 270933478872.

It is an interprime number because it is at equal distance from previous prime (278874339061) and next prime (278874339083).

It is a junction number, because it is equal to n+sod(n) for n = 278874338997 and 278874339015.

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, 273137922 + ... + 273138942.

Almost surely, 2^278874339072 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 278874339072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452620874496).

278874339072 is an abundant number, since it is smaller than the sum of its proper divisors (626367409920).

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

278874339072 is a wasteful number, since it uses less digits than its factorization.

278874339072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 60.

The spelling of 278874339072 in words is "two hundred seventy-eight billion, eight hundred seventy-four million, three hundred thirty-nine thousand, seventy-two".