452638380381 has 12 divisors (see below), whose sum is σ = 663370850016. Its totient is φ = 274326290920.

The previous prime is 452638380281. The next prime is 452638380391. The reversal of 452638380381 is 183083836254.

It is a happy number.

It is not a de Polignac number, because 452638380381 - 2¹³ = 452638372189 is a prime.

It is a super-2 number, since 2×452638380381² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452638380391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 623468481 + ... + 623469206.

It is an arithmetic number, because the mean of its divisors is an integer number (55280904168).

Almost surely, 2^452638380381 is an apocalyptic number.

It is an amenable number.

452638380381 is a deficient number, since it is larger than the sum of its proper divisors (210732469635).

452638380381 is a wasteful number, since it uses less digits than its factorization.

452638380381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246937712 (or 1246937701 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 452638380381 in words is "four hundred fifty-two billion, six hundred thirty-eight million, three hundred eighty thousand, three hundred eighty-one".