71306471306 has 64 divisors (see below), whose sum is σ = 131816325120. Its totient is φ = 28251840960.

The previous prime is 71306471293. The next prime is 71306471347. The reversal of 71306471306 is 60317460317.

It is a super-2 number, since 2×71306471306² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 71306471306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2043401 + ... + 2078003.

It is an arithmetic number, because the mean of its divisors is an integer number (2059630080).

Almost surely, 2^71306471306 is an apocalyptic number.

71306471306 is a deficient number, since it is larger than the sum of its proper divisors (60509853814).

71306471306 is a wasteful number, since it uses less digits than its factorization.

71306471306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34819.

The product of its (nonzero) digits is 63504, while the sum is 38.

The spelling of 71306471306 in words is "seventy-one billion, three hundred six million, four hundred seventy-one thousand, three hundred six".