15534413042 has 8 divisors (see below), whose sum is σ = 23450037996. Its totient is φ = 7717733712.

The previous prime is 15534413039. The next prime is 15534413047. The reversal of 15534413042 is 24031443551.

It can be written as a sum of positive squares in 2 ways, for example, as 12595797361 + 2938615681 = 112231^2 + 54209^2 .

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

It is not an unprimeable number, because it can be changed into a prime (15534413047) 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, 24736013 + ... + 24736640.

Almost surely, 2^15534413042 is an apocalyptic number.

15534413042 is a deficient number, since it is larger than the sum of its proper divisors (7915624954).

15534413042 is a wasteful number, since it uses less digits than its factorization.

15534413042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49472812.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 15534413042 its reverse (24031443551), we get a palindrome (39565856593).

The spelling of 15534413042 in words is "fifteen billion, five hundred thirty-four million, four hundred thirteen thousand, forty-two".