2541512889889 has 2 divisors, whose sum is σ = 2541512889890. Its totient is φ = 2541512889888.

The previous prime is 2541512889863. The next prime is 2541512889931. The reversal of 2541512889889 is 9889882151452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2013263021025 + 528249868864 = 1418895^2 + 726808^2 .

It is a cyclic number.

It is not a de Polignac number, because 2541512889889 - 2¹³ = 2541512881697 is a prime.

It is not a weakly prime, because it can be changed into another prime (2541512889389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270756444944 + 1270756444945.

It is an arithmetic number, because the mean of its divisors is an integer number (1270756444945).

Almost surely, 2^{2541512889889} is an apocalyptic number.

It is an amenable number.

2541512889889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541512889889 is an equidigital number, since it uses as much as digits as its factorization.

2541512889889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132710400, while the sum is 70.

The spelling of 2541512889889 in words is "two trillion, five hundred forty-one billion, five hundred twelve million, eight hundred eighty-nine thousand, eight hundred eighty-nine".