71429226405 has 32 divisors (see below), whose sum is σ = 115555604736. Its totient is φ = 37673662464.

The previous prime is 71429226403. The next prime is 71429226431. The reversal of 71429226405 is 50462292417.

It is a happy number.

It is not a de Polignac number, because 71429226405 - 2¹ = 71429226403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71429226403) 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, 1100949 + ... + 1164021.

It is an arithmetic number, because the mean of its divisors is an integer number (3611112648).

Almost surely, 2^71429226405 is an apocalyptic number.

It is an amenable number.

71429226405 is a deficient number, since it is larger than the sum of its proper divisors (44126378331).

71429226405 is a wasteful number, since it uses less digits than its factorization.

71429226405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63917.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 71429226405 in words is "seventy-one billion, four hundred twenty-nine million, two hundred twenty-six thousand, four hundred five".