87894319423 has 2 divisors, whose sum is σ = 87894319424. Its totient is φ = 87894319422.

The previous prime is 87894319417. The next prime is 87894319483. The reversal of 87894319423 is 32491349878.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87894319423 is a prime.

It is a super-2 number, since 2×87894319423² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87894319483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43947159711 + 43947159712.

It is an arithmetic number, because the mean of its divisors is an integer number (43947159712).

Almost surely, 2^87894319423 is an apocalyptic number.

87894319423 is a deficient number, since it is larger than the sum of its proper divisors (1).

87894319423 is an equidigital number, since it uses as much as digits as its factorization.

87894319423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10450944, while the sum is 58.

The spelling of 87894319423 in words is "eighty-seven billion, eight hundred ninety-four million, three hundred nineteen thousand, four hundred twenty-three".