71220975191040 has 88 divisors (see below), whose sum is σ = 227795837886720. Its totient is φ = 18992260046848.

The previous prime is 71220975191017. The next prime is 71220975191087. The reversal of 71220975191040 is 4019157902217.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 2318375760 + ... + 2318406479.

Almost surely, 2^{71220975191040} is an apocalyptic number.

It is an amenable number.

71220975191040 is an abundant number, since it is smaller than the sum of its proper divisors (156574862695680).

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

71220975191040 is a wasteful number, since it uses less digits than its factorization.

71220975191040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636782267 (or 4636782249 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 48.

The spelling of 71220975191040 in words is "seventy-one trillion, two hundred twenty billion, nine hundred seventy-five million, one hundred ninety-one thousand, forty".