47158622545 has 4 divisors (see below), whose sum is σ = 56590347060. Its totient is φ = 37726898032.

The previous prime is 47158622473. The next prime is 47158622569. The reversal of 47158622545 is 54522685174.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7012890049 + 40145732496 = 83743^2 + 200364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47158622545 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4715862250 + ... + 4715862259.

It is an arithmetic number, because the mean of its divisors is an integer number (14147586765).

Almost surely, 2^47158622545 is an apocalyptic number.

It is an amenable number.

47158622545 is a deficient number, since it is larger than the sum of its proper divisors (9431724515).

47158622545 is an equidigital number, since it uses as much as digits as its factorization.

47158622545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9431724514.

The product of its digits is 2688000, while the sum is 49.

The spelling of 47158622545 in words is "forty-seven billion, one hundred fifty-eight million, six hundred twenty-two thousand, five hundred forty-five".