278572960460 has 48 divisors (see below), whose sum is σ = 595669476864. Its totient is φ = 109408356288.

The previous prime is 278572960441. The next prime is 278572960483. The reversal of 278572960460 is 64069275872.

It is a junction number, because it is equal to n+sod(n) for n = 278572960396 and 278572960405.

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 15 ways as a sum of consecutive naturals, for example, 72797 + ... + 749963.

It is an arithmetic number, because the mean of its divisors is an integer number (12409780768).

Almost surely, 2^278572960460 is an apocalyptic number.

278572960460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

278572960460 is an abundant number, since it is smaller than the sum of its proper divisors (317096516404).

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

278572960460 is a wasteful number, since it uses less digits than its factorization.

278572960460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677550 (or 677548 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 278572960460 in words is "two hundred seventy-eight billion, five hundred seventy-two million, nine hundred sixty thousand, four hundred sixty".