2478367787099 has 2 divisors, whose sum is σ = 2478367787100. Its totient is φ = 2478367787098.

The previous prime is 2478367787083. The next prime is 2478367787143. The reversal of 2478367787099 is 9907877638742.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2478367787099 - 2⁴ = 2478367787083 is a prime.

It is a super-2 number, since 2×2478367787099² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2478367787059) 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, 1239183893549 + 1239183893550.

It is an arithmetic number, because the mean of its divisors is an integer number (1239183893550).

Almost surely, 2^{2478367787099} is an apocalyptic number.

2478367787099 is a deficient number, since it is larger than the sum of its proper divisors (1).

2478367787099 is an equidigital number, since it uses as much as digits as its factorization.

2478367787099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792336896, while the sum is 77.

The spelling of 2478367787099 in words is "two trillion, four hundred seventy-eight billion, three hundred sixty-seven million, seven hundred eighty-seven thousand, ninety-nine".