8452534524621 has 32 divisors (see below), whose sum is σ = 13045682976768. Its totient is φ = 4811085699840.

The previous prime is 8452534524571. The next prime is 8452534524671. The reversal of 8452534524621 is 1264254352548.

It is an interprime number because it is at equal distance from previous prime (8452534524571) and next prime (8452534524671).

It is not a de Polignac number, because 8452534524621 - 2²² = 8452530330317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8452534524671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15869605 + ... + 16393578.

It is an arithmetic number, because the mean of its divisors is an integer number (407677593024).

Almost surely, 2^{8452534524621} is an apocalyptic number.

It is an amenable number.

8452534524621 is a deficient number, since it is larger than the sum of its proper divisors (4593148452147).

8452534524621 is a wasteful number, since it uses less digits than its factorization.

8452534524621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32263681.

The product of its digits is 9216000, while the sum is 51.

The spelling of 8452534524621 in words is "eight trillion, four hundred fifty-two billion, five hundred thirty-four million, five hundred twenty-four thousand, six hundred twenty-one".