40551866887 has 16 divisors (see below), whose sum is σ = 46438848000. Its totient is φ = 34688431008.

The previous prime is 40551866879. The next prime is 40551866891. The reversal of 40551866887 is 78866815504.

It is not a de Polignac number, because 40551866887 - 2³ = 40551866879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40551866087) 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, 9305113 + ... + 9309469.

It is an arithmetic number, because the mean of its divisors is an integer number (2902428000).

Almost surely, 2^40551866887 is an apocalyptic number.

40551866887 is a deficient number, since it is larger than the sum of its proper divisors (5886981113).

40551866887 is a wasteful number, since it uses less digits than its factorization.

40551866887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6750.

The product of its (nonzero) digits is 12902400, while the sum is 58.

The spelling of 40551866887 in words is "forty billion, five hundred fifty-one million, eight hundred sixty-six thousand, eight hundred eighty-seven".