47481215018 has 8 divisors (see below), whose sum is σ = 71227213860. Its totient is φ = 23738810400.

The previous prime is 47481215003. The next prime is 47481215053. The reversal of 47481215018 is 81051218474.

It can be written as a sum of positive squares in 2 ways, for example, as 40178999809 + 7302215209 = 200447^2 + 85453^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865283 + ... + 918518.

Almost surely, 2^47481215018 is an apocalyptic number.

47481215018 is a deficient number, since it is larger than the sum of its proper divisors (23745998842).

47481215018 is a wasteful number, since it uses less digits than its factorization.

47481215018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797112.

The product of its (nonzero) digits is 71680, while the sum is 41.

The spelling of 47481215018 in words is "forty-seven billion, four hundred eighty-one million, two hundred fifteen thousand, eighteen".