40105531685442 has 16 divisors (see below), whose sum is σ = 80267272962912. Its totient is φ = 13359142296480.

The previous prime is 40105531685377. The next prime is 40105531685467. The reversal of 40105531685442 is 24458613550104.

40105531685442 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 = 40105531685391 and 40105531685400.

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, 2342057059 + ... + 2342074182.

It is an arithmetic number, because the mean of its divisors is an integer number (5016704560182).

Almost surely, 2^{40105531685442} is an apocalyptic number.

40105531685442 is an abundant number, since it is smaller than the sum of its proper divisors (40161741277470).

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

40105531685442 is a wasteful number, since it uses less digits than its factorization.

40105531685442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4684132673.

The product of its (nonzero) digits is 2304000, while the sum is 48.

The spelling of 40105531685442 in words is "forty trillion, one hundred five billion, five hundred thirty-one million, six hundred eighty-five thousand, four hundred forty-two".