40542252313 has 8 divisors (see below), whose sum is σ = 41941921032. Its totient is φ = 39158580096.

The previous prime is 40542252299. The next prime is 40542252337. The reversal of 40542252313 is 31325224504.

It can be written as a sum of positive squares in 4 ways, for example, as 13800845529 + 26741406784 = 117477^2 + 163528^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40542252313 - 2²⁵ = 40508697881 is a prime.

It is a super-2 number, since 2×40542252313² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40542252353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3993970 + ... + 4004107.

It is an arithmetic number, because the mean of its divisors is an integer number (5242740129).

Almost surely, 2^40542252313 is an apocalyptic number.

It is an amenable number.

40542252313 is a deficient number, since it is larger than the sum of its proper divisors (1399668719).

40542252313 is a wasteful number, since it uses less digits than its factorization.

40542252313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7998251.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 40542252313 its reverse (31325224504), we get a palindrome (71867476817).

The spelling of 40542252313 in words is "forty billion, five hundred forty-two million, two hundred fifty-two thousand, three hundred thirteen".