71697018853 has 8 divisors (see below), whose sum is σ = 72834140672. Its totient is φ = 70561868256.

The previous prime is 71697018803. The next prime is 71697018859. The reversal of 71697018853 is 35881079617.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71697018853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71697018794 and 71697018803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71697018859) 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, 419400 + ... + 565057.

It is an arithmetic number, because the mean of its divisors is an integer number (9104267584).

Almost surely, 2^71697018853 is an apocalyptic number.

It is an amenable number.

71697018853 is a deficient number, since it is larger than the sum of its proper divisors (1137121819).

71697018853 is a wasteful number, since it uses less digits than its factorization.

71697018853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985611.

The product of its (nonzero) digits is 2540160, while the sum is 55.

The spelling of 71697018853 in words is "seventy-one billion, six hundred ninety-seven million, eighteen thousand, eight hundred fifty-three".