71909283148 has 12 divisors (see below), whose sum is σ = 125855270800. Its totient is φ = 35950634352.

The previous prime is 71909283139. The next prime is 71909283151. The reversal of 71909283148 is 84138290917.

It is a junction number, because it is equal to n+sod(n) for n = 71909283095 and 71909283104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 961248 + ... + 1033351.

Almost surely, 2^71909283148 is an apocalyptic number.

It is an amenable number.

71909283148 is a deficient number, since it is larger than the sum of its proper divisors (53945987652).

71909283148 is a wasteful number, since it uses less digits than its factorization.

71909283148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003616 (or 2003614 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 71909283148 in words is "seventy-one billion, nine hundred nine million, two hundred eighty-three thousand, one hundred forty-eight".