20106467387 has 4 divisors (see below), whose sum is σ = 20109068520. Its totient is φ = 20103866256.

The previous prime is 20106467383. The next prime is 20106467389. The reversal of 20106467387 is 78376460102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20106467387 - 2² = 20106467383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20106467383) 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 3 ways as a sum of consecutive naturals, for example, 1288937 + ... + 1304442.

It is an arithmetic number, because the mean of its divisors is an integer number (5027267130).

Almost surely, 2^20106467387 is an apocalyptic number.

20106467387 is a deficient number, since it is larger than the sum of its proper divisors (2601133).

20106467387 is an equidigital number, since it uses as much as digits as its factorization.

20106467387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601132.

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 20106467387 in words is "twenty billion, one hundred six million, four hundred sixty-seven thousand, three hundred eighty-seven".