40643412355442 has 16 divisors (see below), whose sum is σ = 65711784563712. Its totient is φ = 18742200430800.

The previous prime is 40643412355409. The next prime is 40643412355471. The reversal of 40643412355442 is 24455321434604.

It is a happy number.

40643412355442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 679035308 + ... + 679095159.

It is an arithmetic number, because the mean of its divisors is an integer number (4106986535232).

Almost surely, 2^{40643412355442} is an apocalyptic number.

40643412355442 is a deficient number, since it is larger than the sum of its proper divisors (25068372208270).

40643412355442 is a wasteful number, since it uses less digits than its factorization.

40643412355442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358131633.

The product of its (nonzero) digits is 5529600, while the sum is 47.

The spelling of 40643412355442 in words is "forty trillion, six hundred forty-three billion, four hundred twelve million, three hundred fifty-five thousand, four hundred forty-two".