402564216453 has 32 divisors (see below), whose sum is σ = 620234274816. Its totient is φ = 227491651008.

The previous prime is 402564216449. The next prime is 402564216487. The reversal of 402564216453 is 354612465204.

It is a happy number.

It is not a de Polignac number, because 402564216453 - 2² = 402564216449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402564216443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1458526 + ... + 1712432.

It is an arithmetic number, because the mean of its divisors is an integer number (19382321088).

Almost surely, 2^402564216453 is an apocalyptic number.

It is an amenable number.

402564216453 is a deficient number, since it is larger than the sum of its proper divisors (217670058363).

402564216453 is a wasteful number, since it uses less digits than its factorization.

402564216453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254753.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 402564216453 in words is "four hundred two billion, five hundred sixty-four million, two hundred sixteen thousand, four hundred fifty-three".