71355746653 has 4 divisors (see below), whose sum is σ = 72215454528. Its totient is φ = 70496038780.

The previous prime is 71355746611. The next prime is 71355746669. The reversal of 71355746653 is 35664755317.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35664755317 = 14281 ⋅2497357.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71355746653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71355746653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71355746353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429853813 + ... + 429853978.

It is an arithmetic number, because the mean of its divisors is an integer number (18053863632).

Almost surely, 2^71355746653 is an apocalyptic number.

It is an amenable number.

71355746653 is a deficient number, since it is larger than the sum of its proper divisors (859707875).

71355746653 is an equidigital number, since it uses as much as digits as its factorization.

71355746653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859707874.

The product of its digits is 7938000, while the sum is 52.

The spelling of 71355746653 in words is "seventy-one billion, three hundred fifty-five million, seven hundred forty-six thousand, six hundred fifty-three".