543538963901 has 4 divisors (see below), whose sum is σ = 543540480000. Its totient is φ = 543537447804.

The previous prime is 543538963873. The next prime is 543538963909. The reversal of 543538963901 is 109369835345.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-543538963901 is a prime.

It is a super-2 number, since 2×543538963901² (a number of 24 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 (543538963909) 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, 114500 + ... + 1048898.

It is an arithmetic number, because the mean of its divisors is an integer number (135885120000).

Almost surely, 2^543538963901 is an apocalyptic number.

It is an amenable number.

543538963901 is a deficient number, since it is larger than the sum of its proper divisors (1516099).

543538963901 is an equidigital number, since it uses as much as digits as its factorization.

543538963901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516098.

The product of its (nonzero) digits is 10497600, while the sum is 56.

The spelling of 543538963901 in words is "five hundred forty-three billion, five hundred thirty-eight million, nine hundred sixty-three thousand, nine hundred one".