542043641531 has 8 divisors (see below), whose sum is σ = 621038849760. Its totient is φ = 463438533888.

The previous prime is 542043641519. The next prime is 542043641593. The reversal of 542043641531 is 135146340245.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542043641531 is a prime.

It is a super-2 number, since 2×542043641531² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (542043641231) 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, 97522166 + ... + 97527723.

It is an arithmetic number, because the mean of its divisors is an integer number (77629856220).

Almost surely, 2^542043641531 is an apocalyptic number.

542043641531 is a deficient number, since it is larger than the sum of its proper divisors (78995208229).

542043641531 is a wasteful number, since it uses less digits than its factorization.

542043641531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195050293.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 542043641531 its reverse (135146340245), we get a palindrome (677189981776).

The spelling of 542043641531 in words is "five hundred forty-two billion, forty-three million, six hundred forty-one thousand, five hundred thirty-one".