40004220051 has 12 divisors (see below), whose sum is σ = 57814487640. Its totient is φ = 26655350400.

The previous prime is 40004220031. The next prime is 40004220071. The reversal of 40004220051 is 15002240004.

It is an interprime number because it is at equal distance from previous prime (40004220031) and next prime (40004220071).

It is not a de Polignac number, because 40004220051 - 2¹⁰ = 40004219027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40004220031) 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 11 ways as a sum of consecutive naturals, for example, 1159525 + ... + 1193526.

It is an arithmetic number, because the mean of its divisors is an integer number (4817873970).

Almost surely, 2^40004220051 is an apocalyptic number.

40004220051 is a deficient number, since it is larger than the sum of its proper divisors (17810267589).

40004220051 is a wasteful number, since it uses less digits than its factorization.

40004220051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354946 (or 2354943 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 40004220051 its reverse (15002240004), we get a palindrome (55006460055).

The spelling of 40004220051 in words is "forty billion, four million, two hundred twenty thousand, fifty-one".