278310824047 has 2 divisors, whose sum is σ = 278310824048. Its totient is φ = 278310824046.

The previous prime is 278310824009. The next prime is 278310824069. The reversal of 278310824047 is 740428013872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 278310824047 - 2²⁷ = 278176606319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 278310823988 and 278310824006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (278310824947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139155412023 + 139155412024.

It is an arithmetic number, because the mean of its divisors is an integer number (139155412024).

Almost surely, 2^278310824047 is an apocalyptic number.

278310824047 is a deficient number, since it is larger than the sum of its proper divisors (1).

278310824047 is an equidigital number, since it uses as much as digits as its factorization.

278310824047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 602112, while the sum is 46.

The spelling of 278310824047 in words is "two hundred seventy-eight billion, three hundred ten million, eight hundred twenty-four thousand, forty-seven".