40505143315531 has 4 divisors (see below), whose sum is σ = 40505331818952. Its totient is φ = 40504954812112.

The previous prime is 40505143315487. The next prime is 40505143315573. The reversal of 40505143315531 is 13551334150504.

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 40505143315531 - 2⁹ = 40505143315019 is a prime.

It is a super-2 number, since 2×40505143315531² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40505143318531) 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, 93929026 + ... + 94359271.

It is an arithmetic number, because the mean of its divisors is an integer number (10126332954738).

Almost surely, 2^{40505143315531} is an apocalyptic number.

40505143315531 is a deficient number, since it is larger than the sum of its proper divisors (188503421).

40505143315531 is a wasteful number, since it uses less digits than its factorization.

40505143315531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188503420.

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 40505143315531 in words is "forty trillion, five hundred five billion, one hundred forty-three million, three hundred fifteen thousand, five hundred thirty-one".