47121995845 has 8 divisors (see below), whose sum is σ = 56549243520. Its totient is φ = 37695697680.

The previous prime is 47121995831. The next prime is 47121995849. The reversal of 47121995845 is 54859912174.

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

It is not a de Polignac number, because 47121995845 - 2⁵ = 47121995813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47121995849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123201 + ... + 330790.

It is an arithmetic number, because the mean of its divisors is an integer number (7068655440).

Almost surely, 2^47121995845 is an apocalyptic number.

It is an amenable number.

47121995845 is a deficient number, since it is larger than the sum of its proper divisors (9427247675).

47121995845 is a wasteful number, since it uses less digits than its factorization.

47121995845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474755.

The product of its digits is 3628800, while the sum is 55.

The spelling of 47121995845 in words is "forty-seven billion, one hundred twenty-one million, nine hundred ninety-five thousand, eight hundred forty-five".