47445561073 has 2 divisors, whose sum is σ = 47445561074. Its totient is φ = 47445561072.

The previous prime is 47445561061. The next prime is 47445561221. The reversal of 47445561073 is 37016554474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46512686224 + 932874849 = 215668^2 + 30543^2 .

It is a cyclic number.

It is not a de Polignac number, because 47445561073 - 2¹³ = 47445552881 is a prime.

It is a super-2 number, since 2×47445561073² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47445561043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23722780536 + 23722780537.

It is an arithmetic number, because the mean of its divisors is an integer number (23722780537).

Almost surely, 2^47445561073 is an apocalyptic number.

It is an amenable number.

47445561073 is a deficient number, since it is larger than the sum of its proper divisors (1).

47445561073 is an equidigital number, since it uses as much as digits as its factorization.

47445561073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1411200, while the sum is 46.

The spelling of 47445561073 in words is "forty-seven billion, four hundred forty-five million, five hundred sixty-one thousand, seventy-three".