402102333649 has 2 divisors, whose sum is σ = 402102333650. Its totient is φ = 402102333648.

The previous prime is 402102333637. The next prime is 402102333671. The reversal of 402102333649 is 946333201204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 394424193024 + 7678140625 = 628032^2 + 87625^2 .

It is a cyclic number.

It is not a de Polignac number, because 402102333649 - 2⁵ = 402102333617 is a prime.

It is not a weakly prime, because it can be changed into another prime (402102333629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201051166824 + 201051166825.

It is an arithmetic number, because the mean of its divisors is an integer number (201051166825).

Almost surely, 2^402102333649 is an apocalyptic number.

It is an amenable number.

402102333649 is a deficient number, since it is larger than the sum of its proper divisors (1).

402102333649 is an equidigital number, since it uses as much as digits as its factorization.

402102333649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 402102333649 in words is "four hundred two billion, one hundred two million, three hundred thirty-three thousand, six hundred forty-nine".