71047346141 has 8 divisors (see below), whose sum is σ = 73777200504. Its totient is φ = 68364967680.

The previous prime is 71047346129. The next prime is 71047346147. The reversal of 71047346141 is 14164374017.

It can be written as a sum of positive squares in 4 ways, for example, as 10750579225 + 60296766916 = 103685^2 + 245554^2 .

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-71047346141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71047346095 and 71047346104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71047346147) 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, 11865926 + ... + 11871911.

It is an arithmetic number, because the mean of its divisors is an integer number (9222150063).

Almost surely, 2^71047346141 is an apocalyptic number.

It is an amenable number.

71047346141 is a deficient number, since it is larger than the sum of its proper divisors (2729854363).

71047346141 is a wasteful number, since it uses less digits than its factorization.

71047346141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23737951.

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 71047346141 in words is "seventy-one billion, forty-seven million, three hundred forty-six thousand, one hundred forty-one".