47170473421 has 4 divisors (see below), whose sum is σ = 48797041500. Its totient is φ = 45543905344.

The previous prime is 47170473403. The next prime is 47170473521. The reversal of 47170473421 is 12437407174.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12437407174 = 2 ⋅6218703587.

It can be written as a sum of positive squares in 2 ways, for example, as 11899755396 + 35270718025 = 109086^2 + 187805^2 .

It is a cyclic number.

It is not a de Polignac number, because 47170473421 - 2¹¹ = 47170471373 is a prime.

It is a super-2 number, since 2×47170473421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47170473521) 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, 813283996 + ... + 813284053.

It is an arithmetic number, because the mean of its divisors is an integer number (12199260375).

Almost surely, 2^47170473421 is an apocalyptic number.

It is an amenable number.

47170473421 is a deficient number, since it is larger than the sum of its proper divisors (1626568079).

47170473421 is a wasteful number, since it uses less digits than its factorization.

47170473421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626568078.

The product of its (nonzero) digits is 131712, while the sum is 40.

The spelling of 47170473421 in words is "forty-seven billion, one hundred seventy million, four hundred seventy-three thousand, four hundred twenty-one".