401765012633 has 2 divisors, whose sum is σ = 401765012634. Its totient is φ = 401765012632.

The previous prime is 401765012603. The next prime is 401765012681. The reversal of 401765012633 is 336210567104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 371450024089 + 30314988544 = 609467^2 + 174112^2 .

It is a cyclic number.

It is not a de Polignac number, because 401765012633 - 2²⁰ = 401763964057 is a prime.

It is a super-2 number, since 2×401765012633² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (401765012603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200882506316 + 200882506317.

It is an arithmetic number, because the mean of its divisors is an integer number (200882506317).

Almost surely, 2^401765012633 is an apocalyptic number.

It is an amenable number.

401765012633 is a deficient number, since it is larger than the sum of its proper divisors (1).

401765012633 is an equidigital number, since it uses as much as digits as its factorization.

401765012633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

Adding to 401765012633 its reverse (336210567104), we get a palindrome (737975579737).

The spelling of 401765012633 in words is "four hundred one billion, seven hundred sixty-five million, twelve thousand, six hundred thirty-three".