542621707126237 has 2 divisors, whose sum is σ = 542621707126238. Its totient is φ = 542621707126236.

The previous prime is 542621707126171. The next prime is 542621707126313. The reversal of 542621707126237 is 732621707126245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 474815474448121 + 67806232678116 = 21790261^2 + 8234454^2 .

It is a cyclic number.

It is not a de Polignac number, because 542621707126237 - 2³⁹ = 542071951312349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542621707126337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271310853563118 + 271310853563119.

It is an arithmetic number, because the mean of its divisors is an integer number (271310853563119).

Almost surely, 2^{542621707126237} is an apocalyptic number.

It is an amenable number.

542621707126237 is a deficient number, since it is larger than the sum of its proper divisors (1).

542621707126237 is an equidigital number, since it uses as much as digits as its factorization.

542621707126237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11854080, while the sum is 55.

The spelling of 542621707126237 in words is "five hundred forty-two trillion, six hundred twenty-one billion, seven hundred seven million, one hundred twenty-six thousand, two hundred thirty-seven".