20087354887 has 8 divisors (see below), whose sum is σ = 21379169376. Its totient is φ = 18807785472.

The previous prime is 20087354869. The next prime is 20087355007. The reversal of 20087354887 is 78845378002.

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 20087354887 - 2²³ = 20078966279 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 (20087354867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3057883 + ... + 3064444.

It is an arithmetic number, because the mean of its divisors is an integer number (2672396172).

Almost surely, 2^20087354887 is an apocalyptic number.

20087354887 is a deficient number, since it is larger than the sum of its proper divisors (1291814489).

20087354887 is a wasteful number, since it uses less digits than its factorization.

20087354887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6122537.

The product of its (nonzero) digits is 3010560, while the sum is 52.

The spelling of 20087354887 in words is "twenty billion, eighty-seven million, three hundred fifty-four thousand, eight hundred eighty-seven".