40738067771 has 2 divisors, whose sum is σ = 40738067772. Its totient is φ = 40738067770.

The previous prime is 40738067767. The next prime is 40738067791. The reversal of 40738067771 is 17776083704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40738067771 - 2² = 40738067767 is a prime.

It is not a weakly prime, because it can be changed into another prime (40738067731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20369033885 + 20369033886.

It is an arithmetic number, because the mean of its divisors is an integer number (20369033886).

Almost surely, 2^40738067771 is an apocalyptic number.

40738067771 is a deficient number, since it is larger than the sum of its proper divisors (1).

40738067771 is an equidigital number, since it uses as much as digits as its factorization.

40738067771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1382976, while the sum is 50.

The spelling of 40738067771 in words is "forty billion, seven hundred thirty-eight million, sixty-seven thousand, seven hundred seventy-one".