20878716883 has 2 divisors, whose sum is σ = 20878716884. Its totient is φ = 20878716882.

The previous prime is 20878716871. The next prime is 20878716899. The reversal of 20878716883 is 38861787802.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20878716883 - 2¹³ = 20878708691 is a prime.

It is not a weakly prime, because it can be changed into another prime (20878710883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10439358441 + 10439358442.

It is an arithmetic number, because the mean of its divisors is an integer number (10439358442).

Almost surely, 2^20878716883 is an apocalyptic number.

20878716883 is a deficient number, since it is larger than the sum of its proper divisors (1).

20878716883 is an equidigital number, since it uses as much as digits as its factorization.

20878716883 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7225344, while the sum is 58.

The spelling of 20878716883 in words is "twenty billion, eight hundred seventy-eight million, seven hundred sixteen thousand, eight hundred eighty-three".