40331136513 has 4 divisors (see below), whose sum is σ = 53774848688. Its totient is φ = 26887424340.

The previous prime is 40331136511. The next prime is 40331136523. The reversal of 40331136513 is 31563113304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40331136513 - 2¹ = 40331136511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40331136511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6721856083 + ... + 6721856088.

It is an arithmetic number, because the mean of its divisors is an integer number (13443712172).

Almost surely, 2^40331136513 is an apocalyptic number.

It is an amenable number.

40331136513 is a deficient number, since it is larger than the sum of its proper divisors (13443712175).

40331136513 is a wasteful number, since it uses less digits than its factorization.

40331136513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13443712174.

The product of its (nonzero) digits is 9720, while the sum is 30.

Adding to 40331136513 its reverse (31563113304), we get a palindrome (71894249817).

The spelling of 40331136513 in words is "forty billion, three hundred thirty-one million, one hundred thirty-six thousand, five hundred thirteen".