47211370018 has 4 divisors (see below), whose sum is σ = 70817055030. Its totient is φ = 23605685008.

The previous prime is 47211370009. The next prime is 47211370061. The reversal of 47211370018 is 81007311274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39213108529 + 7998261489 = 198023^2 + 89433^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11802842503 + ... + 11802842506.

Almost surely, 2^47211370018 is an apocalyptic number.

47211370018 is a deficient number, since it is larger than the sum of its proper divisors (23605685012).

47211370018 is a wasteful number, since it uses less digits than its factorization.

47211370018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23605685011.

The product of its (nonzero) digits is 9408, while the sum is 34.

The spelling of 47211370018 in words is "forty-seven billion, two hundred eleven million, three hundred seventy thousand, eighteen".