2279476079989 has 2 divisors, whose sum is σ = 2279476079990. Its totient is φ = 2279476079988.

The previous prime is 2279476079987. The next prime is 2279476080017. The reversal of 2279476079989 is 9899706749722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1738099456900 + 541376623089 = 1318370^2 + 735783^2 .

It is a cyclic number.

It is not a de Polignac number, because 2279476079989 - 2¹ = 2279476079987 is a prime.

It is a super-2 number, since 2×2279476079989² (a number of 26 digits) contains 22 as substring.

Together with 2279476079987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2279476079987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139738039994 + 1139738039995.

It is an arithmetic number, because the mean of its divisors is an integer number (1139738039995).

Almost surely, 2^{2279476079989} is an apocalyptic number.

It is an amenable number.

2279476079989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2279476079989 is an equidigital number, since it uses as much as digits as its factorization.

2279476079989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728324864, while the sum is 79.

The spelling of 2279476079989 in words is "two trillion, two hundred seventy-nine billion, four hundred seventy-six million, seventy-nine thousand, nine hundred eighty-nine".