40205712774 has 64 divisors (see below), whose sum is σ = 86115778560. Its totient is φ = 12477336480.

The previous prime is 40205712763. The next prime is 40205712803. The reversal of 40205712774 is 47721750204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1796119 + ... + 1818365.

It is an arithmetic number, because the mean of its divisors is an integer number (1345559040).

Almost surely, 2^40205712774 is an apocalyptic number.

40205712774 is an abundant number, since it is smaller than the sum of its proper divisors (45910065786).

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

40205712774 is a wasteful number, since it uses less digits than its factorization.

40205712774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22545.

The product of its (nonzero) digits is 109760, while the sum is 39.

The spelling of 40205712774 in words is "forty billion, two hundred five million, seven hundred twelve thousand, seven hundred seventy-four".