40136856803353 has 2 divisors, whose sum is σ = 40136856803354. Its totient is φ = 40136856803352.

The previous prime is 40136856803341. The next prime is 40136856803377. The reversal of 40136856803353 is 35330865863104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37033030317529 + 3103826485824 = 6085477^2 + 1761768^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40136856803353 is a prime.

It is a super-2 number, since 2×40136856803353² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40136856803294 and 40136856803303.

It is not a weakly prime, because it can be changed into another prime (40136856803333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20068428401676 + 20068428401677.

It is an arithmetic number, because the mean of its divisors is an integer number (20068428401677).

Almost surely, 2^{40136856803353} is an apocalyptic number.

It is an amenable number.

40136856803353 is a deficient number, since it is larger than the sum of its proper divisors (1).

40136856803353 is an equidigital number, since it uses as much as digits as its factorization.

40136856803353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18662400, while the sum is 55.

The spelling of 40136856803353 in words is "forty trillion, one hundred thirty-six billion, eight hundred fifty-six million, eight hundred three thousand, three hundred fifty-three".