47215144651 has 4 divisors (see below), whose sum is σ = 48015401400. Its totient is φ = 46414887904.

The previous prime is 47215144649. The next prime is 47215144657. The reversal of 47215144651 is 15644151274.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15644151274 = 2 ⋅7822075637.

It is a cyclic number.

It is not a de Polignac number, because 47215144651 - 2¹ = 47215144649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47215144657) 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, 400128286 + ... + 400128403.

It is an arithmetic number, because the mean of its divisors is an integer number (12003850350).

Almost surely, 2^47215144651 is an apocalyptic number.

47215144651 is a deficient number, since it is larger than the sum of its proper divisors (800256749).

47215144651 is an equidigital number, since it uses as much as digits as its factorization.

47215144651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800256748.

The product of its digits is 134400, while the sum is 40.

The spelling of 47215144651 in words is "forty-seven billion, two hundred fifteen million, one hundred forty-four thousand, six hundred fifty-one".