10541530867421 has 4 divisors (see below), whose sum is σ = 10585271659644. Its totient is φ = 10497790075200.

The previous prime is 10541530867403. The next prime is 10541530867423. The reversal of 10541530867421 is 12476803514501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9385712359321 + 1155818508100 = 3063611^2 + 1075090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10541530867421 is a prime.

It is a super-2 number, since 2×10541530867421² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10541530867423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21870395750 + ... + 21870396231.

It is an arithmetic number, because the mean of its divisors is an integer number (2646317914911).

Almost surely, 2^{10541530867421} is an apocalyptic number.

It is an amenable number.

10541530867421 is a deficient number, since it is larger than the sum of its proper divisors (43740792223).

10541530867421 is an equidigital number, since it uses as much as digits as its factorization.

10541530867421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43740792222.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 10541530867421 in words is "ten trillion, five hundred forty-one billion, five hundred thirty million, eight hundred sixty-seven thousand, four hundred twenty-one".