84958056487 has 2 divisors, whose sum is σ = 84958056488. Its totient is φ = 84958056486.

The previous prime is 84958056439. The next prime is 84958056511. The reversal of 84958056487 is 78465085948.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84958056487 - 2¹⁹ = 84957532199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84958056187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42479028243 + 42479028244.

It is an arithmetic number, because the mean of its divisors is an integer number (42479028244).

Almost surely, 2^84958056487 is an apocalyptic number.

84958056487 is a deficient number, since it is larger than the sum of its proper divisors (1).

84958056487 is an equidigital number, since it uses as much as digits as its factorization.

84958056487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77414400, while the sum is 64.

The spelling of 84958056487 in words is "eighty-four billion, nine hundred fifty-eight million, fifty-six thousand, four hundred eighty-seven".