40681842586885 has 16 divisors (see below), whose sum is σ = 50140623078000. Its totient is φ = 31663971380736.

The previous prime is 40681842586883. The next prime is 40681842586909. The reversal of 40681842586885 is 58868524818604.

It can be written as a sum of positive squares in 8 ways, for example, as 1142508729924 + 39539333856961 = 1068882^2 + 6288031^2 .

It is a cyclic number.

It is not a de Polignac number, because 40681842586885 - 2¹ = 40681842586883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40681842586883) 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, 3477610 + ... + 9667339.

It is an arithmetic number, because the mean of its divisors is an integer number (3133788942375).

Almost surely, 2^{40681842586885} is an apocalyptic number.

It is an amenable number.

40681842586885 is a deficient number, since it is larger than the sum of its proper divisors (9458780491115).

40681842586885 is a wasteful number, since it uses less digits than its factorization.

40681842586885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13161720.

The product of its (nonzero) digits is 943718400, while the sum is 73.

The spelling of 40681842586885 in words is "forty trillion, six hundred eighty-one billion, eight hundred forty-two million, five hundred eighty-six thousand, eight hundred eighty-five".