40344325551 has 12 divisors (see below), whose sum is σ = 58357339560. Its totient is φ = 26858277360.

The previous prime is 40344325529. The next prime is 40344325579. The reversal of 40344325551 is 15552344304.

40344325551 is a `hidden beast` number, since 40 + 3 + 4 + 43 + 25 + 551 = 666.

It is not a de Polignac number, because 40344325551 - 2⁵ = 40344325519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40344325501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3154905 + ... + 3167666.

It is an arithmetic number, because the mean of its divisors is an integer number (4863111630).

Almost surely, 2^40344325551 is an apocalyptic number.

40344325551 is a deficient number, since it is larger than the sum of its proper divisors (18013014009).

40344325551 is a wasteful number, since it uses less digits than its factorization.

40344325551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6323286 (or 6323283 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 40344325551 its reverse (15552344304), we get a palindrome (55896669855).

The spelling of 40344325551 in words is "forty billion, three hundred forty-four million, three hundred twenty-five thousand, five hundred fifty-one".