40108585365803 has 4 divisors (see below), whose sum is σ = 40195212980448. Its totient is φ = 40021957751160.

The previous prime is 40108585365799. The next prime is 40108585365859. The reversal of 40108585365803 is 30856358580104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40108585365803 - 2² = 40108585365799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40108585365883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43313806628 + ... + 43313807553.

It is an arithmetic number, because the mean of its divisors is an integer number (10048803245112).

Almost surely, 2^{40108585365803} is an apocalyptic number.

40108585365803 is a deficient number, since it is larger than the sum of its proper divisors (86627614645).

40108585365803 is an equidigital number, since it uses as much as digits as its factorization.

40108585365803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86627614644.

The product of its (nonzero) digits is 13824000, while the sum is 56.

The spelling of 40108585365803 in words is "forty trillion, one hundred eight billion, five hundred eighty-five million, three hundred sixty-five thousand, eight hundred three".