402562023453 has 6 divisors (see below), whose sum is σ = 581478478334. Its totient is φ = 268374682296.

The previous prime is 402562023427. The next prime is 402562023469. The reversal of 402562023453 is 354320265204.

402562023453 is a `hidden beast` number, since 4 + 0 + 2 + 5 + 620 + 23 + 4 + 5 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 397773660249 + 4788363204 = 630693^2 + 69198^2 .

It is not a de Polignac number, because 402562023453 - 2²⁴ = 402545246237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402562023473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22364556850 + ... + 22364556867.

Almost surely, 2^402562023453 is an apocalyptic number.

It is an amenable number.

402562023453 is a deficient number, since it is larger than the sum of its proper divisors (178916454881).

402562023453 is a wasteful number, since it uses less digits than its factorization.

402562023453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44729113723 (or 44729113720 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 402562023453 its reverse (354320265204), we get a palindrome (756882288657).

The spelling of 402562023453 in words is "four hundred two billion, five hundred sixty-two million, twenty-three thousand, four hundred fifty-three".