40410256644646 has 32 divisors (see below), whose sum is σ = 72653607797760. Its totient is φ = 16481605420896.

The previous prime is 40410256644601. The next prime is 40410256644647. The reversal of 40410256644646 is 64644665201404.

40410256644646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40410256644593 and 40410256644602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40410256644647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318458626 + ... + 318585493.

It is an arithmetic number, because the mean of its divisors is an integer number (2270425243680).

Almost surely, 2^{40410256644646} is an apocalyptic number.

40410256644646 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

40410256644646 is a deficient number, since it is larger than the sum of its proper divisors (32243351153114).

40410256644646 is a wasteful number, since it uses less digits than its factorization.

40410256644646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637044348.

The product of its (nonzero) digits is 13271040, while the sum is 52.

The spelling of 40410256644646 in words is "forty trillion, four hundred ten billion, two hundred fifty-six million, six hundred forty-four thousand, six hundred forty-six".