20292571391 has 2 divisors, whose sum is σ = 20292571392. Its totient is φ = 20292571390.

The previous prime is 20292571363. The next prime is 20292571423. The reversal of 20292571391 is 19317529202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20292571391 - 2¹⁰ = 20292570367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20292571591) 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 as a sum of consecutive naturals, namely, 10146285695 + 10146285696.

It is an arithmetic number, because the mean of its divisors is an integer number (10146285696).

Almost surely, 2^20292571391 is an apocalyptic number.

20292571391 is a deficient number, since it is larger than the sum of its proper divisors (1).

20292571391 is an equidigital number, since it uses as much as digits as its factorization.

20292571391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 20292571391 in words is "twenty billion, two hundred ninety-two million, five hundred seventy-one thousand, three hundred ninety-one".