71471040365 has 8 divisors (see below), whose sum is σ = 90810263160. Its totient is φ = 53813489152.

The previous prime is 71471040359. The next prime is 71471040383. The reversal of 71471040365 is 56304017417.

It can be written as a sum of positive squares in 4 ways, for example, as 15734440969 + 55736599396 = 125437^2 + 236086^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 71471040365 - 2¹⁸ = 71470778221 is a prime.

It is a super-2 number, since 2×71471040365² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 420417800 + ... + 420417969.

It is an arithmetic number, because the mean of its divisors is an integer number (11351282895).

Almost surely, 2^71471040365 is an apocalyptic number.

It is an amenable number.

71471040365 is a deficient number, since it is larger than the sum of its proper divisors (19339222795).

71471040365 is a wasteful number, since it uses less digits than its factorization.

71471040365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840835791.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 71471040365 in words is "seventy-one billion, four hundred seventy-one million, forty thousand, three hundred sixty-five".