542153441663497 has 2 divisors, whose sum is σ = 542153441663498. Its totient is φ = 542153441663496.

The previous prime is 542153441663423. The next prime is 542153441663731. The reversal of 542153441663497 is 794366144351245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333113200429321 + 209040241234176 = 18251389^2 + 14458224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542153441663497 is a prime.

It is not a weakly prime, because it can be changed into another prime (542153441673497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271076720831748 + 271076720831749.

It is an arithmetic number, because the mean of its divisors is an integer number (271076720831749).

Almost surely, 2^{542153441663497} is an apocalyptic number.

It is an amenable number.

542153441663497 is a deficient number, since it is larger than the sum of its proper divisors (1).

542153441663497 is an equidigital number, since it uses as much as digits as its factorization.

542153441663497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 261273600, while the sum is 64.

The spelling of 542153441663497 in words is "five hundred forty-two trillion, one hundred fifty-three billion, four hundred forty-one million, six hundred sixty-three thousand, four hundred ninety-seven".