20386004087 has 16 divisors (see below), whose sum is σ = 21999146400. Its totient is φ = 18820285440.

The previous prime is 20386004083. The next prime is 20386004101. The reversal of 20386004087 is 78040068302.

It is a cyclic number.

It is not a de Polignac number, because 20386004087 - 2² = 20386004083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20386004087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20386004083) 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, 440339 + ... + 484427.

It is an arithmetic number, because the mean of its divisors is an integer number (1374946650).

Almost surely, 2^20386004087 is an apocalyptic number.

20386004087 is a deficient number, since it is larger than the sum of its proper divisors (1613142313).

20386004087 is a wasteful number, since it uses less digits than its factorization.

20386004087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44626.

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 20386004087 in words is "twenty billion, three hundred eighty-six million, four thousand, eighty-seven".