3478656801571 has 4 divisors (see below), whose sum is σ = 3975607773232. Its totient is φ = 2981705829912.

The previous prime is 3478656801559. The next prime is 3478656801617. The reversal of 3478656801571 is 1751086568743.

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 3478656801571 - 2⁷ = 3478656801443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3478656831571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248475485820 + ... + 248475485833.

It is an arithmetic number, because the mean of its divisors is an integer number (993901943308).

Almost surely, 2^{3478656801571} is an apocalyptic number.

3478656801571 is a deficient number, since it is larger than the sum of its proper divisors (496950971661).

3478656801571 is an equidigital number, since it uses as much as digits as its factorization.

3478656801571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496950971660.

The product of its (nonzero) digits is 33868800, while the sum is 61.

The spelling of 3478656801571 in words is "three trillion, four hundred seventy-eight billion, six hundred fifty-six million, eight hundred one thousand, five hundred seventy-one".