47471287946 has 4 divisors (see below), whose sum is σ = 71206931922. Its totient is φ = 23735643972.

The previous prime is 47471287933. The next prime is 47471287957. The reversal of 47471287946 is 64978217474.

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., 46812082321 + 659205625 = 216361^2 + 25675^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11867821985 + ... + 11867821988.

Almost surely, 2^47471287946 is an apocalyptic number.

47471287946 is a deficient number, since it is larger than the sum of its proper divisors (23735643976).

47471287946 is a wasteful number, since it uses less digits than its factorization.

47471287946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23735643975.

The product of its digits is 18966528, while the sum is 59.

The spelling of 47471287946 in words is "forty-seven billion, four hundred seventy-one million, two hundred eighty-seven thousand, nine hundred forty-six".