278256000001 has 8 divisors (see below), whose sum is σ = 321155440704. Its totient is φ = 236143705200.

The previous prime is 278255999999. The next prime is 278256000013. The reversal of 278256000001 is 100000652872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 278256000001 - 2¹ = 278255999999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (278256000041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196785715 + ... + 196787128.

It is an arithmetic number, because the mean of its divisors is an integer number (40144430088).

Almost surely, 2^278256000001 is an apocalyptic number.

It is an amenable number.

278256000001 is a deficient number, since it is larger than the sum of its proper divisors (42899440703).

278256000001 is a wasteful number, since it uses less digits than its factorization.

278256000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393572951.

The product of its (nonzero) digits is 6720, while the sum is 31.

Adding to 278256000001 its reverse (100000652872), we get a palindrome (378256652873).

The spelling of 278256000001 in words is "two hundred seventy-eight billion, two hundred fifty-six million, one", and thus it is an aban number.