40807099051818 has 32 divisors (see below), whose sum is σ = 89048909164032. Its totient is φ = 12363671132400.

The previous prime is 40807099051793. The next prime is 40807099051871. The reversal of 40807099051818 is 81815099070804.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52522918 + ... + 53294193.

It is an arithmetic number, because the mean of its divisors is an integer number (2782778411376).

Almost surely, 2^{40807099051818} is an apocalyptic number.

40807099051818 is an abundant number, since it is smaller than the sum of its proper divisors (48241810112214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40807099051818 is a wasteful number, since it uses less digits than its factorization.

40807099051818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105822970.

The product of its (nonzero) digits is 5806080, while the sum is 60.

The spelling of 40807099051818 in words is "forty trillion, eight hundred seven billion, ninety-nine million, fifty-one thousand, eight hundred eighteen".