71760648865 has 8 divisors (see below), whose sum is σ = 86162825448. Its totient is φ = 57375154560.

The previous prime is 71760648859. The next prime is 71760648877. The reversal of 71760648865 is 56884606717.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35160750144 + 36599898721 = 187512^2 + 191311^2 .

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

It is not a de Polignac number, because 71760648865 - 2¹⁵ = 71760616097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4161102 + ... + 4178311.

It is an arithmetic number, because the mean of its divisors is an integer number (10770353181).

Almost surely, 2^71760648865 is an apocalyptic number.

It is an amenable number.

71760648865 is a deficient number, since it is larger than the sum of its proper divisors (14402176583).

71760648865 is a wasteful number, since it uses less digits than its factorization.

71760648865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8341139.

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 71760648865 in words is "seventy-one billion, seven hundred sixty million, six hundred forty-eight thousand, eight hundred sixty-five".