45052100472621 has 64 divisors (see below), whose sum is σ = 69759847593216. Its totient is φ = 25559413555200.

The previous prime is 45052100472607. The next prime is 45052100472703. The reversal of 45052100472621 is 12627400125054.

It is not a de Polignac number, because 45052100472621 - 2²¹ = 45052098375469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45052100472621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45052100482621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 521507851 + ... + 521594231.

It is an arithmetic number, because the mean of its divisors is an integer number (1089997618644).

Almost surely, 2^{45052100472621} is an apocalyptic number.

It is an amenable number.

45052100472621 is a deficient number, since it is larger than the sum of its proper divisors (24707747120595).

45052100472621 is a wasteful number, since it uses less digits than its factorization.

45052100472621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91422.

The product of its (nonzero) digits is 134400, while the sum is 39.

Adding to 45052100472621 its reverse (12627400125054), we get a palindrome (57679500597675).

The spelling of 45052100472621 in words is "forty-five trillion, fifty-two billion, one hundred million, four hundred seventy-two thousand, six hundred twenty-one".