71478470015583 has 4 divisors (see below), whose sum is σ = 95304626687448. Its totient is φ = 47652313343720.

The previous prime is 71478470015581. The next prime is 71478470015593. The reversal of 71478470015583 is 38551007487417.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71478470015583 - 2¹ = 71478470015581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71478470015581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11913078335928 + ... + 11913078335933.

It is an arithmetic number, because the mean of its divisors is an integer number (23826156671862).

Almost surely, 2^{71478470015583} is an apocalyptic number.

71478470015583 is a deficient number, since it is larger than the sum of its proper divisors (23826156671865).

71478470015583 is a wasteful number, since it uses less digits than its factorization.

71478470015583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23826156671864.

The product of its (nonzero) digits is 26342400, while the sum is 60.

The spelling of 71478470015583 in words is "seventy-one trillion, four hundred seventy-eight billion, four hundred seventy million, fifteen thousand, five hundred eighty-three".