87345451423 has 2 divisors, whose sum is σ = 87345451424. Its totient is φ = 87345451422.

The previous prime is 87345451411. The next prime is 87345451439. The reversal of 87345451423 is 32415454378.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87345451423 - 2¹³ = 87345443231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87345431423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43672725711 + 43672725712.

It is an arithmetic number, because the mean of its divisors is an integer number (43672725712).

Almost surely, 2^87345451423 is an apocalyptic number.

87345451423 is a deficient number, since it is larger than the sum of its proper divisors (1).

87345451423 is an equidigital number, since it uses as much as digits as its factorization.

87345451423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1612800, while the sum is 46.

The spelling of 87345451423 in words is "eighty-seven billion, three hundred forty-five million, four hundred fifty-one thousand, four hundred twenty-three".