40777343941 has 2 divisors, whose sum is σ = 40777343942. Its totient is φ = 40777343940.

The previous prime is 40777343939. The next prime is 40777344001. The reversal of 40777343941 is 14934377704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24208248100 + 16569095841 = 155590^2 + 128721^2 .

It is a cyclic number.

It is not a de Polignac number, because 40777343941 - 2¹ = 40777343939 is a prime.

It is a super-2 number, since 2×40777343941² (a number of 22 digits) contains 22 as substring.

Together with 40777343939, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40777343041) 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, 20388671970 + 20388671971.

It is an arithmetic number, because the mean of its divisors is an integer number (20388671971).

Almost surely, 2^40777343941 is an apocalyptic number.

It is an amenable number.

40777343941 is a deficient number, since it is larger than the sum of its proper divisors (1).

40777343941 is an equidigital number, since it uses as much as digits as its factorization.

40777343941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1778112, while the sum is 49.

The spelling of 40777343941 in words is "forty billion, seven hundred seventy-seven million, three hundred forty-three thousand, nine hundred forty-one".