47172053851 has 12 divisors (see below), whose sum is σ = 51086679672. Its totient is φ = 43537568256.

The previous prime is 47172053821. The next prime is 47172053881. The reversal of 47172053851 is 15835027174.

It is an interprime number because it is at equal distance from previous prime (47172053821) and next prime (47172053881).

It is not a de Polignac number, because 47172053851 - 2²⁷ = 47037836123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47172053798 and 47172053807.

It is not an unprimeable number, because it can be changed into a prime (47172053821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1706200 + ... + 1733626.

It is an arithmetic number, because the mean of its divisors is an integer number (4257223306).

Almost surely, 2^47172053851 is an apocalyptic number.

47172053851 is a deficient number, since it is larger than the sum of its proper divisors (3914625821).

47172053851 is a wasteful number, since it uses less digits than its factorization.

47172053851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37630 (or 37617 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 47172053851 in words is "forty-seven billion, one hundred seventy-two million, fifty-three thousand, eight hundred fifty-one".