40515321351 has 16 divisors (see below), whose sum is σ = 54963560960. Its totient is φ = 26541889920.

The previous prime is 40515321337. The next prime is 40515321361. The reversal of 40515321351 is 15312351504.

It is not a de Polignac number, because 40515321351 - 2¹⁴ = 40515304967 is a prime.

It is a super-3 number, since 3×40515321351³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40515321361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355090 + ... + 455103.

It is an arithmetic number, because the mean of its divisors is an integer number (3435222560).

Almost surely, 2^40515321351 is an apocalyptic number.

40515321351 is a deficient number, since it is larger than the sum of its proper divisors (14448239609).

40515321351 is a wasteful number, since it uses less digits than its factorization.

40515321351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810486.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 40515321351 its reverse (15312351504), we get a palindrome (55827672855).

The spelling of 40515321351 in words is "forty billion, five hundred fifteen million, three hundred twenty-one thousand, three hundred fifty-one".