84510013261477 has 2 divisors, whose sum is σ = 84510013261478. Its totient is φ = 84510013261476.

The previous prime is 84510013261423. The next prime is 84510013261481. The reversal of 84510013261477 is 77416231001548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57726428079681 + 26783585181796 = 7597791^2 + 5175286^2 .

It is a cyclic number.

It is not a de Polignac number, because 84510013261477 - 2²⁷ = 84509879043749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84510013261477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84510013271477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42255006630738 + 42255006630739.

It is an arithmetic number, because the mean of its divisors is an integer number (42255006630739).

Almost surely, 2^{84510013261477} is an apocalyptic number.

It is an amenable number.

84510013261477 is a deficient number, since it is larger than the sum of its proper divisors (1).

84510013261477 is an equidigital number, since it uses as much as digits as its factorization.

84510013261477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 84510013261477 in words is "eighty-four trillion, five hundred ten billion, thirteen million, two hundred sixty-one thousand, four hundred seventy-seven".