542777178943 has 2 divisors, whose sum is σ = 542777178944. Its totient is φ = 542777178942.

The previous prime is 542777178941. The next prime is 542777178989. The reversal of 542777178943 is 349871777245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542777178943 - 2¹ = 542777178941 is a prime.

Together with 542777178941, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542777178941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271388589471 + 271388589472.

It is an arithmetic number, because the mean of its divisors is an integer number (271388589472).

Almost surely, 2^542777178943 is an apocalyptic number.

542777178943 is a deficient number, since it is larger than the sum of its proper divisors (1).

542777178943 is an equidigital number, since it uses as much as digits as its factorization.

542777178943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82978560, while the sum is 64.

The spelling of 542777178943 in words is "five hundred forty-two billion, seven hundred seventy-seven million, one hundred seventy-eight thousand, nine hundred forty-three".