279499680001 has 4 divisors (see below), whose sum is σ = 280587227652. Its totient is φ = 278412132352.

The previous prime is 279499679993. The next prime is 279499680017. The reversal of 279499680001 is 100086994972.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 193578000625 + 85921679376 = 439975^2 + 293124^2 .

It is a cyclic number.

It is not a de Polignac number, because 279499680001 - 2³ = 279499679993 is a prime.

It is a super-2 number, since 2×279499680001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (279499680401) 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, 543773440 + ... + 543773953.

It is an arithmetic number, because the mean of its divisors is an integer number (70146806913).

Almost surely, 2^279499680001 is an apocalyptic number.

It is an amenable number.

279499680001 is a deficient number, since it is larger than the sum of its proper divisors (1087547651).

279499680001 is a wasteful number, since it uses less digits than its factorization.

279499680001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087547650.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 279499680001 in words is "two hundred seventy-nine billion, four hundred ninety-nine million, six hundred eighty thousand, one".