71202649847 has 12 divisors (see below), whose sum is σ = 83192464440. Its totient is φ = 60761974896.

The previous prime is 71202649841. The next prime is 71202649879. The reversal of 71202649847 is 74894620217.

It is a happy number.

It is not a de Polignac number, because 71202649847 - 2²⁰ = 71201601271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71202649795 and 71202649804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71202649841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3189572 + ... + 3211817.

It is an arithmetic number, because the mean of its divisors is an integer number (6932705370).

Almost surely, 2^71202649847 is an apocalyptic number.

71202649847 is a deficient number, since it is larger than the sum of its proper divisors (11989814593).

71202649847 is a wasteful number, since it uses less digits than its factorization.

71202649847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6401630 (or 6401623 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 71202649847 in words is "seventy-one billion, two hundred two million, six hundred forty-nine thousand, eight hundred forty-seven".