2542774468128 has 24 divisors (see below), whose sum is σ = 6674782979088. Its totient is φ = 847591489344.

The previous prime is 2542774468081. The next prime is 2542774468139. The reversal of 2542774468128 is 8218644772452.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13243616926 + ... + 13243617117.

It is an arithmetic number, because the mean of its divisors is an integer number (278115957462).

Almost surely, 2^{2542774468128} is an apocalyptic number.

It is an amenable number.

2542774468128 is an abundant number, since it is smaller than the sum of its proper divisors (4132008510960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2542774468128 is a wasteful number, since it uses less digits than its factorization.

2542774468128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26487234056 (or 26487234048 counting only the distinct ones).

The product of its digits is 48168960, while the sum is 60.

The spelling of 2542774468128 in words is "two trillion, five hundred forty-two billion, seven hundred seventy-four million, four hundred sixty-eight thousand, one hundred twenty-eight".