40012017851 has 8 divisors (see below), whose sum is σ = 43091442240. Its totient is φ = 36932818752.

The previous prime is 40012017841. The next prime is 40012017883. The reversal of 40012017851 is 15871021004.

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 40012017851 - 2¹⁴ = 40012001467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40012017841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573311 + ... + 639303.

It is an arithmetic number, because the mean of its divisors is an integer number (5386430280).

Almost surely, 2^40012017851 is an apocalyptic number.

40012017851 is a deficient number, since it is larger than the sum of its proper divisors (3079424389).

40012017851 is a wasteful number, since it uses less digits than its factorization.

40012017851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112645.

The product of its (nonzero) digits is 2240, while the sum is 29.

Adding to 40012017851 its reverse (15871021004), we get a palindrome (55883038855).

The spelling of 40012017851 in words is "forty billion, twelve million, seventeen thousand, eight hundred fifty-one".