40041513431 has 4 divisors (see below), whose sum is σ = 42396896592. Its totient is φ = 37686130272.

The previous prime is 40041513427. The next prime is 40041513467. The reversal of 40041513431 is 13431514004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40041513431 - 2² = 40041513427 is a prime.

It is a super-2 number, since 2×40041513431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40041513431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40041513401) 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, 1177691555 + ... + 1177691588.

It is an arithmetic number, because the mean of its divisors is an integer number (10599224148).

Almost surely, 2^40041513431 is an apocalyptic number.

40041513431 is a deficient number, since it is larger than the sum of its proper divisors (2355383161).

40041513431 is a wasteful number, since it uses less digits than its factorization.

40041513431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355383160.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 40041513431 in words is "forty billion, forty-one million, five hundred thirteen thousand, four hundred thirty-one".