2479327851557 has 2 divisors, whose sum is σ = 2479327851558. Its totient is φ = 2479327851556.

The previous prime is 2479327851551. The next prime is 2479327851577. The reversal of 2479327851557 is 7551587239742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2478628301956 + 699549601 = 1574366^2 + 26449^2 .

It is a cyclic number.

It is not a de Polignac number, because 2479327851557 - 2⁴ = 2479327851541 is a prime.

It is a super-2 number, since 2×2479327851557² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2479327851493 and 2479327851502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2479327851551) 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, 1239663925778 + 1239663925779.

It is an arithmetic number, because the mean of its divisors is an integer number (1239663925779).

Almost surely, 2^{2479327851557} is an apocalyptic number.

It is an amenable number.

2479327851557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2479327851557 is an equidigital number, since it uses as much as digits as its factorization.

2479327851557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176000, while the sum is 65.

The spelling of 2479327851557 in words is "two trillion, four hundred seventy-nine billion, three hundred twenty-seven million, eight hundred fifty-one thousand, five hundred fifty-seven".