42054421513 has 8 divisors (see below), whose sum is σ = 45291846600. Its totient is φ = 38817349248.

The previous prime is 42054421499. The next prime is 42054421531. The reversal of 42054421513 is 31512445024.

It can be written as a sum of positive squares in 4 ways, for example, as 5145479824 + 36908941689 = 71732^2 + 192117^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42054421513 - 2²⁹ = 41517550601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42054421573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192453 + ... + 348061.

It is an arithmetic number, because the mean of its divisors is an integer number (5661480825).

Almost surely, 2^42054421513 is an apocalyptic number.

It is an amenable number.

42054421513 is a deficient number, since it is larger than the sum of its proper divisors (3237425087).

42054421513 is a wasteful number, since it uses less digits than its factorization.

42054421513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176411.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 42054421513 its reverse (31512445024), we get a palindrome (73566866537).

The spelling of 42054421513 in words is "forty-two billion, fifty-four million, four hundred twenty-one thousand, five hundred thirteen".