71248425545 has 8 divisors (see below), whose sum is σ = 93270666240. Its totient is φ = 51817036720.

The previous prime is 71248425499. The next prime is 71248425553. The reversal of 71248425545 is 54552484217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71248425545 - 2⁶ = 71248425481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71248425545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647712905 + ... + 647713014.

It is an arithmetic number, because the mean of its divisors is an integer number (11658833280).

Almost surely, 2^71248425545 is an apocalyptic number.

It is an amenable number.

71248425545 is a deficient number, since it is larger than the sum of its proper divisors (22022240695).

71248425545 is a wasteful number, since it uses less digits than its factorization.

71248425545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295425935.

The product of its digits is 1792000, while the sum is 47.

The spelling of 71248425545 in words is "seventy-one billion, two hundred forty-eight million, four hundred twenty-five thousand, five hundred forty-five".