6423021516541 has 32 divisors (see below), whose sum is σ = 7841559955968. Its totient is φ = 5142515558400.

The previous prime is 6423021516493. The next prime is 6423021516563. The reversal of 6423021516541 is 1456151203246.

It is a cyclic number.

It is not a de Polignac number, because 6423021516541 - 2³⁷ = 6285582563069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6423021516494 and 6423021516503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6423021516341) 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, 1518396 + ... + 3892501.

It is an arithmetic number, because the mean of its divisors is an integer number (245048748624).

Almost surely, 2^{6423021516541} is an apocalyptic number.

It is an amenable number.

6423021516541 is a deficient number, since it is larger than the sum of its proper divisors (1418538439427).

6423021516541 is a wasteful number, since it uses less digits than its factorization.

6423021516541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411101.

The product of its (nonzero) digits is 172800, while the sum is 40.

Adding to 6423021516541 its reverse (1456151203246), we get a palindrome (7879172719787).

The spelling of 6423021516541 in words is "six trillion, four hundred twenty-three billion, twenty-one million, five hundred sixteen thousand, five hundred forty-one".