28210013406077 has 2 divisors, whose sum is σ = 28210013406078. Its totient is φ = 28210013406076.

The previous prime is 28210013406037. The next prime is 28210013406079. The reversal of 28210013406077 is 77060431001282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26962617042916 + 1247396363161 = 5192554^2 + 1116869^2 .

It is a cyclic number.

It is not a de Polignac number, because 28210013406077 - 2²⁸ = 28209744970621 is a prime.

Together with 28210013406079, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28210013406079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14105006703038 + 14105006703039.

It is an arithmetic number, because the mean of its divisors is an integer number (14105006703039).

Almost surely, 2^{28210013406077} is an apocalyptic number.

It is an amenable number.

28210013406077 is a deficient number, since it is larger than the sum of its proper divisors (1).

28210013406077 is an equidigital number, since it uses as much as digits as its factorization.

28210013406077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 28210013406077 in words is "twenty-eight trillion, two hundred ten billion, thirteen million, four hundred six thousand, seventy-seven".