278384053528680 has 128 divisors (see below), whose sum is σ = 912055793443200. Its totient is φ = 67414398156800.

The previous prime is 278384053528663. The next prime is 278384053528697. The reversal of 278384053528680 is 86825350483872.

278384053528680 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (278384053528663) and next prime (278384053528697).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112281261 + ... + 114733820.

It is an arithmetic number, because the mean of its divisors is an integer number (7125435886275).

Almost surely, 2^{278384053528680} is an apocalyptic number.

278384053528680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

278384053528680 is an abundant number, since it is smaller than the sum of its proper divisors (633671739914520).

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

278384053528680 is a wasteful number, since it uses less digits than its factorization.

278384053528680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227016035 (or 227016031 counting only the distinct ones).

The product of its (nonzero) digits is 619315200, while the sum is 69.

The spelling of 278384053528680 in words is "two hundred seventy-eight trillion, three hundred eighty-four billion, fifty-three million, five hundred twenty-eight thousand, six hundred eighty".