40443772885 has 32 divisors (see below), whose sum is σ = 51534895104. Its totient is φ = 30419712000.

The previous prime is 40443772847. The next prime is 40443772909. The reversal of 40443772885 is 58827734404.

It is a de Polignac number, because none of the positive numbers 2^k-40443772885 is a prime.

It is a super-2 number, since 2×40443772885² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1518352 + ... + 1544758.

It is an arithmetic number, because the mean of its divisors is an integer number (1610465472).

Almost surely, 2^40443772885 is an apocalyptic number.

It is an amenable number.

40443772885 is a deficient number, since it is larger than the sum of its proper divisors (11091122219).

40443772885 is a wasteful number, since it uses less digits than its factorization.

40443772885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26725.

The product of its (nonzero) digits is 6021120, while the sum is 52.

The spelling of 40443772885 in words is "forty billion, four hundred forty-three million, seven hundred seventy-two thousand, eight hundred eighty-five".