279499233122 has 18 divisors (see below), whose sum is σ = 420633964737. Its totient is φ = 139289430600.

The previous prime is 279499233113. The next prime is 279499233127. The reversal of 279499233122 is 221332994972.

It can be written as a sum of positive squares in 2 ways, for example, as 276519274201 + 2979958921 = 525851^2 + 54589^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=373831.

It is a super-2 number, since 2×279499233122² (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 (279499233127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 404484797 + ... + 404485487.

Almost surely, 2^279499233122 is an apocalyptic number.

279499233122 is a deficient number, since it is larger than the sum of its proper divisors (141134731615).

279499233122 is an frugal number, since it uses more digits than its factorization.

279499233122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466 (or 1234 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 53.

The spelling of 279499233122 in words is "two hundred seventy-nine billion, four hundred ninety-nine million, two hundred thirty-three thousand, one hundred twenty-two".