40941689613 has 16 divisors (see below), whose sum is σ = 60818605056. Its totient is φ = 24285205040.

The previous prime is 40941689561. The next prime is 40941689623. The reversal of 40941689613 is 31698614904.

It is a cyclic number.

It is not a de Polignac number, because 40941689613 - 2⁶ = 40941689549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40941689623) 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, 13196931 + ... + 13200032.

It is an arithmetic number, because the mean of its divisors is an integer number (3801162816).

Almost surely, 2^40941689613 is an apocalyptic number.

It is an amenable number.

40941689613 is a deficient number, since it is larger than the sum of its proper divisors (19876915443).

40941689613 is a wasteful number, since it uses less digits than its factorization.

40941689613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26397024.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 40941689613 in words is "forty billion, nine hundred forty-one million, six hundred eighty-nine thousand, six hundred thirteen".