71768019 has 8 divisors (see below), whose sum is σ = 95900112. Its totient is φ = 47740640.

The previous prime is 71768017. The next prime is 71768051. The reversal of 71768019 is 91086717.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71768019 - 2¹ = 71768017 is a prime.

It is a super-2 number, since 2×71768019² = 10301297102368722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71768017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24564 + ... + 27329.

It is an arithmetic number, because the mean of its divisors is an integer number (11987514).

Almost surely, 2^71768019 is an apocalyptic number.

71768019 is a deficient number, since it is larger than the sum of its proper divisors (24132093).

71768019 is a wasteful number, since it uses less digits than its factorization.

71768019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52357.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 71768019 is about 8471.6007342178. The cubic root of 71768019 is about 415.5694876695.

The spelling of 71768019 in words is "seventy-one million, seven hundred sixty-eight thousand, nineteen".