47155144217 has 8 divisors (see below), whose sum is σ = 47198528256. Its totient is φ = 47111784192.

The previous prime is 47155144207. The next prime is 47155144219. The reversal of 47155144217 is 71244155174.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 47155144217 - 2¹² = 47155140121 is a prime.

It is a super-2 number, since 2×47155144217² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47155144219) 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 7 ways as a sum of consecutive naturals, for example, 7438073 + ... + 7444409.

It is an arithmetic number, because the mean of its divisors is an integer number (5899816032).

Almost surely, 2^47155144217 is an apocalyptic number.

It is an amenable number.

47155144217 is a deficient number, since it is larger than the sum of its proper divisors (43384039).

47155144217 is a wasteful number, since it uses less digits than its factorization.

47155144217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12007.

The product of its digits is 156800, while the sum is 41.

The spelling of 47155144217 in words is "forty-seven billion, one hundred fifty-five million, one hundred forty-four thousand, two hundred seventeen".