40531026061 has 2 divisors, whose sum is σ = 40531026062. Its totient is φ = 40531026060.

The previous prime is 40531026031. The next prime is 40531026083. The reversal of 40531026061 is 16062013504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26084188036 + 14446838025 = 161506^2 + 120195^2 .

It is a cyclic number.

It is not a de Polignac number, because 40531026061 - 2³¹ = 38383542413 is a prime.

It is a super-2 number, since 2×40531026061² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40531026031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20265513030 + 20265513031.

It is an arithmetic number, because the mean of its divisors is an integer number (20265513031).

Almost surely, 2^40531026061 is an apocalyptic number.

It is an amenable number.

40531026061 is a deficient number, since it is larger than the sum of its proper divisors (1).

40531026061 is an equidigital number, since it uses as much as digits as its factorization.

40531026061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 40531026061 its reverse (16062013504), we get a palindrome (56593039565).

The spelling of 40531026061 in words is "forty billion, five hundred thirty-one million, twenty-six thousand, sixty-one".