279179420651 has 2 divisors, whose sum is σ = 279179420652. Its totient is φ = 279179420650.

The previous prime is 279179420609. The next prime is 279179420677. The reversal of 279179420651 is 156024971972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 279179420651 - 2⁶ = 279179420587 is a prime.

It is a super-2 number, since 2×279179420651² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 279179420593 and 279179420602.

It is not a weakly prime, because it can be changed into another prime (279179420551) 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 as a sum of consecutive naturals, namely, 139589710325 + 139589710326.

It is an arithmetic number, because the mean of its divisors is an integer number (139589710326).

Almost surely, 2^279179420651 is an apocalyptic number.

279179420651 is a deficient number, since it is larger than the sum of its proper divisors (1).

279179420651 is an equidigital number, since it uses as much as digits as its factorization.

279179420651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 279179420651 in words is "two hundred seventy-nine billion, one hundred seventy-nine million, four hundred twenty thousand, six hundred fifty-one".