279142634066 has 4 divisors (see below), whose sum is σ = 418713951102. Its totient is φ = 139571317032.

The previous prime is 279142634051. The next prime is 279142634081. The reversal of 279142634066 is 660436241972.

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

It is an interprime number because it is at equal distance from previous prime (279142634051) and next prime (279142634081).

It can be written as a sum of positive squares in only one way, i.e., 208269013225 + 70873620841 = 456365^2 + 266221^2 .

It is a super-2 number, since 2×279142634066² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69785658515 + ... + 69785658518.

Almost surely, 2^279142634066 is an apocalyptic number.

279142634066 is a deficient number, since it is larger than the sum of its proper divisors (139571317036).

279142634066 is a wasteful number, since it uses less digits than its factorization.

279142634066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139571317035.

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 279142634066 in words is "two hundred seventy-nine billion, one hundred forty-two million, six hundred thirty-four thousand, sixty-six".