71429226280 has 32 divisors (see below), whose sum is σ = 160855252200. Its totient is φ = 28546891776.

The previous prime is 71429226269. The next prime is 71429226289. The reversal of 71429226280 is 8262292417.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 53413680996 + 18015545284 = 231114^2 + 134222^2 .

It is not an unprimeable number, because it can be changed into a prime (71429226289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728265 + ... + 820504.

Almost surely, 2^71429226280 is an apocalyptic number.

It is an amenable number.

71429226280 is an abundant number, since it is smaller than the sum of its proper divisors (89426025920).

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

71429226280 is a wasteful number, since it uses less digits than its factorization.

71429226280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549933 (or 1549929 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 71429226280 in words is "seventy-one billion, four hundred twenty-nine million, two hundred twenty-six thousand, two hundred eighty".