279179420653 has 16 divisors (see below), whose sum is σ = 336076057600. Its totient is φ = 231577390800.

The previous prime is 279179420651. The next prime is 279179420677. The reversal of 279179420653 is 356024971972.

It is not a de Polignac number, because 279179420653 - 2¹ = 279179420651 is a prime.

It is a super-2 number, since 2×279179420653² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 279179420594 and 279179420603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (279179420651) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 13117338 + ... + 13138603.

It is an arithmetic number, because the mean of its divisors is an integer number (21004753600).

Almost surely, 2^279179420653 is an apocalyptic number.

It is an amenable number.

279179420653 is a deficient number, since it is larger than the sum of its proper divisors (56896636947).

279179420653 is an equidigital number, since it uses as much as digits as its factorization.

279179420653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26255993 (or 26255979 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 279179420653 in words is "two hundred seventy-nine billion, one hundred seventy-nine million, four hundred twenty thousand, six hundred fifty-three".