40481406837829 has 2 divisors, whose sum is σ = 40481406837830. Its totient is φ = 40481406837828.

The previous prime is 40481406837653. The next prime is 40481406837847. The reversal of 40481406837829 is 92873860418404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40478835840804 + 2570997025 = 6362298^2 + 50705^2 .

It is a cyclic number.

It is not a de Polignac number, because 40481406837829 - 2²³ = 40481398449221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40481406837329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20240703418914 + 20240703418915.

It is an arithmetic number, because the mean of its divisors is an integer number (20240703418915).

Almost surely, 2^{40481406837829} is an apocalyptic number.

It is an amenable number.

40481406837829 is a deficient number, since it is larger than the sum of its proper divisors (1).

40481406837829 is an equidigital number, since it uses as much as digits as its factorization.

40481406837829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74317824, while the sum is 64.

The spelling of 40481406837829 in words is "forty trillion, four hundred eighty-one billion, four hundred six million, eight hundred thirty-seven thousand, eight hundred twenty-nine".