402261241049 has 2 divisors, whose sum is σ = 402261241050. Its totient is φ = 402261241048.

The previous prime is 402261241027. The next prime is 402261241087. The reversal of 402261241049 is 940142162204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228955551049 + 173305690000 = 478493^2 + 416300^2 .

It is a cyclic number.

It is not a de Polignac number, because 402261241049 - 2²⁰ = 402260192473 is a prime.

It is not a weakly prime, because it can be changed into another prime (402261241849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201130620524 + 201130620525.

It is an arithmetic number, because the mean of its divisors is an integer number (201130620525).

Almost surely, 2^402261241049 is an apocalyptic number.

It is an amenable number.

402261241049 is a deficient number, since it is larger than the sum of its proper divisors (1).

402261241049 is an equidigital number, since it uses as much as digits as its factorization.

402261241049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 402261241049 in words is "four hundred two billion, two hundred sixty-one million, two hundred forty-one thousand, forty-nine".