2421897418049 has 2 divisors, whose sum is σ = 2421897418050. Its totient is φ = 2421897418048.

The previous prime is 2421897418013. The next prime is 2421897418091. The reversal of 2421897418049 is 9408147981242.

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., 2416759395649 + 5138022400 = 1554593^2 + 71680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2421897418049 is a prime.

It is not a weakly prime, because it can be changed into another prime (2421897418849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210948709024 + 1210948709025.

It is an arithmetic number, because the mean of its divisors is an integer number (1210948709025).

Almost surely, 2^{2421897418049} is an apocalyptic number.

It is an amenable number.

2421897418049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421897418049 is an equidigital number, since it uses as much as digits as its factorization.

2421897418049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9289728, while the sum is 59.

The spelling of 2421897418049 in words is "two trillion, four hundred twenty-one billion, eight hundred ninety-seven million, four hundred eighteen thousand, forty-nine".