40618590111 has 24 divisors (see below), whose sum is σ = 66787883136. Its totient is φ = 23547007440.

The previous prime is 40618590109. The next prime is 40618590137. The reversal of 40618590111 is 11109581604.

It is a happy number.

40618590111 is a `hidden beast` number, since 4 + 0 + 61 + 8 + 590 + 1 + 1 + 1 = 666.

It is not a de Polignac number, because 40618590111 - 2¹ = 40618590109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40618590511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8917045 + ... + 8921598.

It is an arithmetic number, because the mean of its divisors is an integer number (2782828464).

Almost surely, 2^40618590111 is an apocalyptic number.

40618590111 is a deficient number, since it is larger than the sum of its proper divisors (26169293025).

40618590111 is a wasteful number, since it uses less digits than its factorization.

40618590111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17838683 (or 17838680 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The spelling of 40618590111 in words is "forty billion, six hundred eighteen million, five hundred ninety thousand, one hundred eleven".