2426665121 has 2 divisors, whose sum is σ = 2426665122. Its totient is φ = 2426665120.

The previous prime is 2426665097. The next prime is 2426665127. The reversal of 2426665121 is 1215666242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1853733025 + 572932096 = 43055^2 + 23936^2 .

It is a cyclic number.

It is not a de Polignac number, because 2426665121 - 2¹⁸ = 2426402977 is a prime.

It is not a weakly prime, because it can be changed into another prime (2426665127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1213332560 + 1213332561.

It is an arithmetic number, because the mean of its divisors is an integer number (1213332561).

Almost surely, 2^2426665121 is an apocalyptic number.

It is an amenable number.

2426665121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2426665121 is an equidigital number, since it uses as much as digits as its factorization.

2426665121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

The square root of 2426665121 is about 49261.1928499504. The cubic root of 2426665121 is about 1343.8061241934.

The spelling of 2426665121 in words is "two billion, four hundred twenty-six million, six hundred sixty-five thousand, one hundred twenty-one".