40905780893 has 16 divisors (see below), whose sum is σ = 42534446976. Its totient is φ = 39311516160.

The previous prime is 40905780887. The next prime is 40905780907. The reversal of 40905780893 is 39808750904.

40905780893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40905780893 - 2³⁰ = 39832039069 is a prime.

It is a super-3 number, since 3×40905780893³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40905780833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728096 + ... + 782262.

It is an arithmetic number, because the mean of its divisors is an integer number (2658402936).

Almost surely, 2^40905780893 is an apocalyptic number.

It is an amenable number.

40905780893 is a deficient number, since it is larger than the sum of its proper divisors (1628666083).

40905780893 is a wasteful number, since it uses less digits than its factorization.

40905780893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54484.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 40905780893 in words is "forty billion, nine hundred five million, seven hundred eighty thousand, eight hundred ninety-three".