71618421713 has 8 divisors (see below), whose sum is σ = 73311398688. Its totient is φ = 69926691744.

The previous prime is 71618421697. The next prime is 71618421727. The reversal of 71618421713 is 31712481617.

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 71618421713 - 2⁴ = 71618421697 is a prime.

It is a super-2 number, since 2×71618421713² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71618421773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195020 + ... + 425757.

It is an arithmetic number, because the mean of its divisors is an integer number (9163924836).

Almost surely, 2^71618421713 is an apocalyptic number.

It is an amenable number.

71618421713 is a deficient number, since it is larger than the sum of its proper divisors (1692976975).

71618421713 is a wasteful number, since it uses less digits than its factorization.

71618421713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623503.

The product of its digits is 56448, while the sum is 41.

The spelling of 71618421713 in words is "seventy-one billion, six hundred eighteen million, four hundred twenty-one thousand, seven hundred thirteen".