71848555077 has 8 divisors (see below), whose sum is σ = 103167156064. Its totient is φ = 44214495408.

The previous prime is 71848555063. The next prime is 71848555087. The reversal of 71848555077 is 77055584817.

It is a happy number.

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

It is not a de Polignac number, because 71848555077 - 2²⁷ = 71714337349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71848555007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921135283 + ... + 921135360.

It is an arithmetic number, because the mean of its divisors is an integer number (12895894508).

Almost surely, 2^71848555077 is an apocalyptic number.

It is an amenable number.

71848555077 is a deficient number, since it is larger than the sum of its proper divisors (31318600987).

71848555077 is a wasteful number, since it uses less digits than its factorization.

71848555077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842270659.

The product of its (nonzero) digits is 10976000, while the sum is 57.

The spelling of 71848555077 in words is "seventy-one billion, eight hundred forty-eight million, five hundred fifty-five thousand, seventy-seven".