40690554937 has 2 divisors, whose sum is σ = 40690554938. Its totient is φ = 40690554936.

The previous prime is 40690554923. The next prime is 40690555051. The reversal of 40690554937 is 73945509604.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33335091241 + 7355463696 = 182579^2 + 85764^2 .

It is a cyclic number.

It is not a de Polignac number, because 40690554937 - 2⁷ = 40690554809 is a prime.

It is a super-2 number, since 2×40690554937² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40690554917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20345277468 + 20345277469.

It is an arithmetic number, because the mean of its divisors is an integer number (20345277469).

Almost surely, 2^40690554937 is an apocalyptic number.

It is an amenable number.

40690554937 is a deficient number, since it is larger than the sum of its proper divisors (1).

40690554937 is an equidigital number, since it uses as much as digits as its factorization.

40690554937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 52.

The spelling of 40690554937 in words is "forty billion, six hundred ninety million, five hundred fifty-four thousand, nine hundred thirty-seven".