3551850383887 has 32 divisors (see below), whose sum is σ = 3912671443968. Its totient is φ = 3204046050816.

The previous prime is 3551850383863. The next prime is 3551850383911. The reversal of 3551850383887 is 7883830581553.

It is an interprime number because it is at equal distance from previous prime (3551850383863) and next prime (3551850383911).

It is not a de Polignac number, because 3551850383887 - 2⁷ = 3551850383759 is a prime.

It is a super-3 number, since 3×3551850383887³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551850383087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 500045778 + ... + 500052880.

It is an arithmetic number, because the mean of its divisors is an integer number (122270982624).

Almost surely, 2^{3551850383887} is an apocalyptic number.

3551850383887 is a deficient number, since it is larger than the sum of its proper divisors (360821060081).

3551850383887 is a wasteful number, since it uses less digits than its factorization.

3551850383887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9939.

The product of its (nonzero) digits is 96768000, while the sum is 64.

The spelling of 3551850383887 in words is "three trillion, five hundred fifty-one billion, eight hundred fifty million, three hundred eighty-three thousand, eight hundred eighty-seven".