542045433623 has 2 divisors, whose sum is σ = 542045433624. Its totient is φ = 542045433622.

The previous prime is 542045433607. The next prime is 542045433661. The reversal of 542045433623 is 326334540245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542045433623 - 2⁴ = 542045433607 is a prime.

It is a super-2 number, since 2×542045433623² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542045463623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271022716811 + 271022716812.

It is an arithmetic number, because the mean of its divisors is an integer number (271022716812).

Almost surely, 2^542045433623 is an apocalyptic number.

542045433623 is a deficient number, since it is larger than the sum of its proper divisors (1).

542045433623 is an equidigital number, since it uses as much as digits as its factorization.

542045433623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 41.

Adding to 542045433623 its reverse (326334540245), we get a palindrome (868379973868).

The spelling of 542045433623 in words is "five hundred forty-two billion, forty-five million, four hundred thirty-three thousand, six hundred twenty-three".