2478367787049 has 48 divisors (see below), whose sum is σ = 4463574994944. Its totient is φ = 1287357861600.

The previous prime is 2478367787047. The next prime is 2478367787059. The reversal of 2478367787049 is 9407877638742.

2478367787049 is a `hidden beast` number, since 2 + 478 + 3 + 6 + 77 + 87 + 0 + 4 + 9 = 666.

It is not a de Polignac number, because 2478367787049 - 2¹ = 2478367787047 is a prime.

It is a super-2 number, since 2×2478367787049² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2478367787047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8662414 + ... + 8943944.

It is an arithmetic number, because the mean of its divisors is an integer number (92991145728).

Almost surely, 2^{2478367787049} is an apocalyptic number.

It is an amenable number.

2478367787049 is a deficient number, since it is larger than the sum of its proper divisors (1985207207895).

2478367787049 is a wasteful number, since it uses less digits than its factorization.

2478367787049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294258 (or 294255 counting only the distinct ones).

The product of its (nonzero) digits is 796594176, while the sum is 72.

The spelling of 2478367787049 in words is "two trillion, four hundred seventy-eight billion, three hundred sixty-seven million, seven hundred eighty-seven thousand, forty-nine".