279409006879 has 2 divisors, whose sum is σ = 279409006880. Its totient is φ = 279409006878.

The previous prime is 279409006867. The next prime is 279409006931. The reversal of 279409006879 is 978600904972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 279409006879 - 2¹⁵ = 279408974111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (279409000879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139704503439 + 139704503440.

It is an arithmetic number, because the mean of its divisors is an integer number (139704503440).

Almost surely, 2^279409006879 is an apocalyptic number.

279409006879 is a deficient number, since it is larger than the sum of its proper divisors (1).

279409006879 is an equidigital number, since it uses as much as digits as its factorization.

279409006879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 279409006879 in words is "two hundred seventy-nine billion, four hundred nine million, six thousand, eight hundred seventy-nine".