40805283853 has 2 divisors, whose sum is σ = 40805283854. Its totient is φ = 40805283852.

The previous prime is 40805283803. The next prime is 40805283887. The reversal of 40805283853 is 35838250804.

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., 38479922569 + 2325361284 = 196163^2 + 48222^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40805283853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40805283803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20402641926 + 20402641927.

It is an arithmetic number, because the mean of its divisors is an integer number (20402641927).

Almost surely, 2^40805283853 is an apocalyptic number.

It is an amenable number.

40805283853 is a deficient number, since it is larger than the sum of its proper divisors (1).

40805283853 is an equidigital number, since it uses as much as digits as its factorization.

40805283853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 921600, while the sum is 46.

The spelling of 40805283853 in words is "forty billion, eight hundred five million, two hundred eighty-three thousand, eight hundred fifty-three".