278480405023 has 8 divisors (see below), whose sum is σ = 288089067600. Its totient is φ = 268872135168.

The previous prime is 278480405017. The next prime is 278480405039. The reversal of 278480405023 is 320504084872.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-278480405023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278480405003) 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 7 ways as a sum of consecutive naturals, for example, 2626248 + ... + 2730226.

It is an arithmetic number, because the mean of its divisors is an integer number (36011133450).

Almost surely, 2^278480405023 is an apocalyptic number.

278480405023 is a deficient number, since it is larger than the sum of its proper divisors (9608662577).

278480405023 is a wasteful number, since it uses less digits than its factorization.

278480405023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196361.

The product of its (nonzero) digits is 430080, while the sum is 43.

Adding to 278480405023 its reverse (320504084872), we get a palindrome (598984489895).

The spelling of 278480405023 in words is "two hundred seventy-eight billion, four hundred eighty million, four hundred five thousand, twenty-three".