71076521345 has 8 divisors (see below), whose sum is σ = 85304578920. Its totient is φ = 56852714880.

The previous prime is 71076521339. The next prime is 71076521353. The reversal of 71076521345 is 54312567017.

It can be written as a sum of positive squares in 4 ways, for example, as 3740423281 + 67336098064 = 61159^2 + 259492^2 .

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

It is not a de Polignac number, because 71076521345 - 2¹⁸ = 71076259201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025876 + ... + 1092965.

It is an arithmetic number, because the mean of its divisors is an integer number (10663072365).

Almost surely, 2^71076521345 is an apocalyptic number.

It is an amenable number.

71076521345 is a deficient number, since it is larger than the sum of its proper divisors (14228057575).

71076521345 is a wasteful number, since it uses less digits than its factorization.

71076521345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125555.

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 71076521345 in words is "seventy-one billion, seventy-six million, five hundred twenty-one thousand, three hundred forty-five".