40108204813 has 4 divisors (see below), whose sum is σ = 40111218720. Its totient is φ = 40105190908.

The previous prime is 40108204769. The next prime is 40108204817. The reversal of 40108204813 is 31840280104.

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 a cyclic number.

It is not a de Polignac number, because 40108204813 - 2¹³ = 40108196621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40108204817) 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, 1486903 + ... + 1513636.

It is an arithmetic number, because the mean of its divisors is an integer number (10027804680).

Almost surely, 2^40108204813 is an apocalyptic number.

It is an amenable number.

40108204813 is a deficient number, since it is larger than the sum of its proper divisors (3013907).

40108204813 is a wasteful number, since it uses less digits than its factorization.

40108204813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013906.

The product of its (nonzero) digits is 6144, while the sum is 31.

Adding to 40108204813 its reverse (31840280104), we get a palindrome (71948484917).

The spelling of 40108204813 in words is "forty billion, one hundred eight million, two hundred four thousand, eight hundred thirteen".