71345631540012 has 96 divisors (see below), whose sum is σ = 176033026283520. Its totient is φ = 22427595394560.

The previous prime is 71345631540011. The next prime is 71345631540017. The reversal of 71345631540012 is 21004513654317.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71345631540011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 880628418 + ... + 880709430.

It is an arithmetic number, because the mean of its divisors is an integer number (1833677357120).

Almost surely, 2^{71345631540012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71345631540012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88016513141760).

71345631540012 is an abundant number, since it is smaller than the sum of its proper divisors (104687394743508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71345631540012 is a wasteful number, since it uses less digits than its factorization.

71345631540012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98583 (or 98581 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 71345631540012 in words is "seventy-one trillion, three hundred forty-five billion, six hundred thirty-one million, five hundred forty thousand, twelve".