71144380780 has 48 divisors (see below), whose sum is σ = 163005242400. Its totient is φ = 25867520000.

The previous prime is 71144380777. The next prime is 71144380793. The reversal of 71144380780 is 8708344117.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2526780 + ... + 2554780.

It is an arithmetic number, because the mean of its divisors is an integer number (3395942550).

Almost surely, 2^71144380780 is an apocalyptic number.

It is an amenable number.

71144380780 is an abundant number, since it is smaller than the sum of its proper divisors (91860861620).

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

71144380780 is a wasteful number, since it uses less digits than its factorization.

71144380780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39570 (or 39568 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 71144380780 in words is "seventy-one billion, one hundred forty-four million, three hundred eighty thousand, seven hundred eighty".