2489042110421 has 2 divisors, whose sum is σ = 2489042110422. Its totient is φ = 2489042110420.

The previous prime is 2489042110409. The next prime is 2489042110523. The reversal of 2489042110421 is 1240112409842.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2415444388900 + 73597721521 = 1554170^2 + 271289^2 .

It is a cyclic number.

It is not a de Polignac number, because 2489042110421 - 2¹⁸ = 2489041848277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2489042160421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1244521055210 + 1244521055211.

It is an arithmetic number, because the mean of its divisors is an integer number (1244521055211).

Almost surely, 2^{2489042110421} is an apocalyptic number.

It is an amenable number.

2489042110421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2489042110421 is an equidigital number, since it uses as much as digits as its factorization.

2489042110421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 2489042110421 in words is "two trillion, four hundred eighty-nine billion, forty-two million, one hundred ten thousand, four hundred twenty-one".