40615803813 has 16 divisors (see below), whose sum is σ = 59420511360. Its totient is φ = 24522748224.

The previous prime is 40615803803. The next prime is 40615803817. The reversal of 40615803813 is 31830851604.

It is not a de Polignac number, because 40615803813 - 2⁴ = 40615803797 is a prime.

It is a super-2 number, since 2×40615803813² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40615803817) 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, 9822753 + ... + 9826886.

It is an arithmetic number, because the mean of its divisors is an integer number (3713781960).

Almost surely, 2^40615803813 is an apocalyptic number.

It is an amenable number.

40615803813 is a deficient number, since it is larger than the sum of its proper divisors (18804707547).

40615803813 is a wasteful number, since it uses less digits than its factorization.

40615803813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19649708.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 40615803813 in words is "forty billion, six hundred fifteen million, eight hundred three thousand, eight hundred thirteen".