71311429764 has 27 divisors (see below), whose sum is σ = 180263497687. Its totient is φ = 23769942504.

The previous prime is 71311429753. The next prime is 71311429769. The reversal of 71311429764 is 46792411317.

It is a happy number.

The square root of 71311429764 is 267042.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71311429769) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1579999 + ... + 1624505.

Almost surely, 2^71311429764 is an apocalyptic number.

71311429764 is the 267042-nd square number.

It is an amenable number.

71311429764 is an abundant number, since it is smaller than the sum of its proper divisors (108952067923).

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

71311429764 is an frugal number, since it uses more digits than its factorization.

71311429764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89024 (or 44512 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The spelling of 71311429764 in words is "seventy-one billion, three hundred eleven million, four hundred twenty-nine thousand, seven hundred sixty-four".