40851144841015 has 8 divisors (see below), whose sum is σ = 49946305390848. Its totient is φ = 32064294818400.

The previous prime is 40851144840973. The next prime is 40851144841021. The reversal of 40851144841015 is 51014844115804.

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

It is not a de Polignac number, because 40851144841015 - 2¹⁷ = 40851144709943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77077631511 + ... + 77077632040.

It is an arithmetic number, because the mean of its divisors is an integer number (6243288173856).

Almost surely, 2^{40851144841015} is an apocalyptic number.

40851144841015 is a deficient number, since it is larger than the sum of its proper divisors (9095160549833).

40851144841015 is a wasteful number, since it uses less digits than its factorization.

40851144841015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154155263609.

The product of its (nonzero) digits is 409600, while the sum is 46.

Adding to 40851144841015 its reverse (51014844115804), we get a palindrome (91865988956819).

The spelling of 40851144841015 in words is "forty trillion, eight hundred fifty-one billion, one hundred forty-four million, eight hundred forty-one thousand, fifteen".