40526165437 has 2 divisors, whose sum is σ = 40526165438. Its totient is φ = 40526165436.

The previous prime is 40526165417. The next prime is 40526165489. The reversal of 40526165437 is 73456162504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20411551161 + 20114614276 = 142869^2 + 141826^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40526165437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40526165393 and 40526165402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40526165417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20263082718 + 20263082719.

It is an arithmetic number, because the mean of its divisors is an integer number (20263082719).

Almost surely, 2^40526165437 is an apocalyptic number.

It is an amenable number.

40526165437 is a deficient number, since it is larger than the sum of its proper divisors (1).

40526165437 is an equidigital number, since it uses as much as digits as its factorization.

40526165437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 40526165437 in words is "forty billion, five hundred twenty-six million, one hundred sixty-five thousand, four hundred thirty-seven".