279423566753 has 2 divisors, whose sum is σ = 279423566754. Its totient is φ = 279423566752.

The previous prime is 279423566657. The next prime is 279423566839. The reversal of 279423566753 is 357665324972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277247530849 + 2176035904 = 526543^2 + 46648^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-279423566753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 279423566692 and 279423566701.

It is not a weakly prime, because it can be changed into another prime (279423566053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139711783376 + 139711783377.

It is an arithmetic number, because the mean of its divisors is an integer number (139711783377).

Almost surely, 2^279423566753 is an apocalyptic number.

It is an amenable number.

279423566753 is a deficient number, since it is larger than the sum of its proper divisors (1).

279423566753 is an equidigital number, since it uses as much as digits as its factorization.

279423566753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57153600, while the sum is 59.

The spelling of 279423566753 in words is "two hundred seventy-nine billion, four hundred twenty-three million, five hundred sixty-six thousand, seven hundred fifty-three".