279954748057 has 4 divisors (see below), whose sum is σ = 279957511440. Its totient is φ = 279951984676.

The previous prime is 279954748049. The next prime is 279954748061. The reversal of 279954748057 is 750847459972.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 279954748057 - 2³ = 279954748049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 279954747983 and 279954748001.

It is not an unprimeable number, because it can be changed into a prime (279954148057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1223707 + ... + 1434352.

It is an arithmetic number, because the mean of its divisors is an integer number (69989377860).

Almost surely, 2^279954748057 is an apocalyptic number.

It is an amenable number.

279954748057 is a deficient number, since it is larger than the sum of its proper divisors (2763383).

279954748057 is a wasteful number, since it uses less digits than its factorization.

279954748057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763382.

The product of its (nonzero) digits is 177811200, while the sum is 67.

The spelling of 279954748057 in words is "two hundred seventy-nine billion, nine hundred fifty-four million, seven hundred forty-eight thousand, fifty-seven".