20097158387 has 2 divisors, whose sum is σ = 20097158388. Its totient is φ = 20097158386.

The previous prime is 20097158383. The next prime is 20097158407. The reversal of 20097158387 is 78385179002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20097158387 - 2² = 20097158383 is a prime.

It is not a weakly prime, because it can be changed into another prime (20097158383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10048579193 + 10048579194.

It is an arithmetic number, because the mean of its divisors is an integer number (10048579194).

Almost surely, 2^20097158387 is an apocalyptic number.

20097158387 is a deficient number, since it is larger than the sum of its proper divisors (1).

20097158387 is an equidigital number, since it uses as much as digits as its factorization.

20097158387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 50.

It can be divided in two parts, 2009715 and 8387, that added together give a palindrome (2018102).

The spelling of 20097158387 in words is "twenty billion, ninety-seven million, one hundred fifty-eight thousand, three hundred eighty-seven".