42211126537 has 2 divisors, whose sum is σ = 42211126538. Its totient is φ = 42211126536.

The previous prime is 42211126519. The next prime is 42211126543. The reversal of 42211126537 is 73562111224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31753814416 + 10457312121 = 178196^2 + 102261^2 .

It is a cyclic number.

It is not a de Polignac number, because 42211126537 - 2¹⁹ = 42210602249 is a prime.

It is a super-2 number, since 2×42211126537² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42211126637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21105563268 + 21105563269.

It is an arithmetic number, because the mean of its divisors is an integer number (21105563269).

Almost surely, 2^42211126537 is an apocalyptic number.

It is an amenable number.

42211126537 is a deficient number, since it is larger than the sum of its proper divisors (1).

42211126537 is an equidigital number, since it uses as much as digits as its factorization.

42211126537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The spelling of 42211126537 in words is "forty-two billion, two hundred eleven million, one hundred twenty-six thousand, five hundred thirty-seven".