2551678424089 has 2 divisors, whose sum is σ = 2551678424090. Its totient is φ = 2551678424088.

The previous prime is 2551678424081. The next prime is 2551678424101. The reversal of 2551678424089 is 9804248761552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1595654028864 + 956024395225 = 1263192^2 + 977765^2 .

It is a cyclic number.

It is not a de Polignac number, because 2551678424089 - 2³ = 2551678424081 is a prime.

It is a super-2 number, since 2×2551678424089² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2551678424081) 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 as a sum of consecutive naturals, namely, 1275839212044 + 1275839212045.

It is an arithmetic number, because the mean of its divisors is an integer number (1275839212045).

Almost surely, 2^{2551678424089} is an apocalyptic number.

It is an amenable number.

2551678424089 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551678424089 is an equidigital number, since it uses as much as digits as its factorization.

2551678424089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38707200, while the sum is 61.

The spelling of 2551678424089 in words is "two trillion, five hundred fifty-one billion, six hundred seventy-eight million, four hundred twenty-four thousand, eighty-nine".