20292876287 has 4 divisors (see below), whose sum is σ = 21175175280. Its totient is φ = 19410577296.

The previous prime is 20292876281. The next prime is 20292876371. The reversal of 20292876287 is 78267829202.

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 20292876287 - 2¹⁸ = 20292614143 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 (20292876281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441149462 + ... + 441149507.

It is an arithmetic number, because the mean of its divisors is an integer number (5293793820).

Almost surely, 2^20292876287 is an apocalyptic number.

20292876287 is a deficient number, since it is larger than the sum of its proper divisors (882298993).

20292876287 is an equidigital number, since it uses as much as digits as its factorization.

20292876287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882298992.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 20292876287 in words is "twenty billion, two hundred ninety-two million, eight hundred seventy-six thousand, two hundred eighty-seven".