8100074521 has 32 divisors (see below), whose sum is σ = 10384323840. Its totient is φ = 6133708800.

The previous prime is 8100074449. The next prime is 8100074539. The reversal of 8100074521 is 1254700018.

It is a cyclic number.

It is not a de Polignac number, because 8100074521 - 2¹¹ = 8100072473 is a prime.

It is a super-2 number, since 2×8100074521² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8100074521.

It is not an unprimeable number, because it can be changed into a prime (8100074551) 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, 3876445 + ... + 3878533.

It is an arithmetic number, because the mean of its divisors is an integer number (324510120).

Almost surely, 2^8100074521 is an apocalyptic number.

It is an amenable number.

8100074521 is a deficient number, since it is larger than the sum of its proper divisors (2284249319).

8100074521 is a wasteful number, since it uses less digits than its factorization.

8100074521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3505.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 8100074521 is about 90000.4140046033. The cubic root of 8100074521 is about 2008.3050090934.

Adding to 8100074521 its reverse (1254700018), we get a palindrome (9354774539).

The spelling of 8100074521 in words is "eight billion, one hundred million, seventy-four thousand, five hundred twenty-one".