71219876065 has 24 divisors (see below), whose sum is σ = 93111629760. Its totient is φ = 52270380864.

The previous prime is 71219876059. The next prime is 71219876081. The reversal of 71219876065 is 56067891217.

It is not a de Polignac number, because 71219876065 - 2¹¹ = 71219874017 is a prime.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120805 + ... + 396274.

It is an arithmetic number, because the mean of its divisors is an integer number (3879651240).

Almost surely, 2^71219876065 is an apocalyptic number.

It is an amenable number.

71219876065 is a deficient number, since it is larger than the sum of its proper divisors (21891753695).

71219876065 is a wasteful number, since it uses less digits than its factorization.

71219876065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517273 (or 517260 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 71219876065 in words is "seventy-one billion, two hundred nineteen million, eight hundred seventy-six thousand, sixty-five".