542601356461 has 4 divisors (see below), whose sum is σ = 542697075900. Its totient is φ = 542505637024.

The previous prime is 542601356431. The next prime is 542601356477. The reversal of 542601356461 is 164653106245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79534716361 + 463066640100 = 282019^2 + 680490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542601356461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542601356431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47851216 + ... + 47862553.

It is an arithmetic number, because the mean of its divisors is an integer number (135674268975).

Almost surely, 2^542601356461 is an apocalyptic number.

It is an amenable number.

542601356461 is a deficient number, since it is larger than the sum of its proper divisors (95719439).

542601356461 is an equidigital number, since it uses as much as digits as its factorization.

542601356461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95719438.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 542601356461 in words is "five hundred forty-two billion, six hundred one million, three hundred fifty-six thousand, four hundred sixty-one".