40655071829 has 2 divisors, whose sum is σ = 40655071830. Its totient is φ = 40655071828.

The previous prime is 40655071811. The next prime is 40655071843. The reversal of 40655071829 is 92817055604.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22287504100 + 18367567729 = 149290^2 + 135527^2 .

It is a cyclic number.

It is not a de Polignac number, because 40655071829 - 2²⁰ = 40654023253 is a prime.

It is a super-2 number, since 2×40655071829² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40655071129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20327535914 + 20327535915.

It is an arithmetic number, because the mean of its divisors is an integer number (20327535915).

Almost surely, 2^40655071829 is an apocalyptic number.

It is an amenable number.

40655071829 is a deficient number, since it is larger than the sum of its proper divisors (1).

40655071829 is an equidigital number, since it uses as much as digits as its factorization.

40655071829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 40655071829 in words is "forty billion, six hundred fifty-five million, seventy-one thousand, eight hundred twenty-nine".