1716422678 has 4 divisors (see below), whose sum is σ = 2574634020. Its totient is φ = 858211338.

The previous prime is 1716422639. The next prime is 1716422689. The reversal of 1716422678 is 8762246171.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1716422678² = 5892213619105383368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429105668 + ... + 429105671.

It is an arithmetic number, because the mean of its divisors is an integer number (643658505).

Almost surely, 2^1716422678 is an apocalyptic number.

1716422678 is a deficient number, since it is larger than the sum of its proper divisors (858211342).

1716422678 is an equidigital number, since it uses as much as digits as its factorization.

1716422678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858211341.

The product of its digits is 225792, while the sum is 44.

The square root of 1716422678 is about 41429.7318118281. The cubic root of 1716422678 is about 1197.3140569288.

The spelling of 1716422678 in words is "one billion, seven hundred sixteen million, four hundred twenty-two thousand, six hundred seventy-eight".