28701201979 has 2 divisors, whose sum is σ = 28701201980. Its totient is φ = 28701201978.

The previous prime is 28701201967. The next prime is 28701202021. The reversal of 28701201979 is 97910210782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28701201979 - 2²⁹ = 28164331067 is a prime.

It is not a weakly prime, because it can be changed into another prime (28701201379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14350600989 + 14350600990.

It is an arithmetic number, because the mean of its divisors is an integer number (14350600990).

Almost surely, 2^28701201979 is an apocalyptic number.

28701201979 is a deficient number, since it is larger than the sum of its proper divisors (1).

28701201979 is an equidigital number, since it uses as much as digits as its factorization.

28701201979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 46.

The spelling of 28701201979 in words is "twenty-eight billion, seven hundred one million, two hundred one thousand, nine hundred seventy-nine".