47120161409 has 2 divisors, whose sum is σ = 47120161410. Its totient is φ = 47120161408.

The previous prime is 47120161391. The next prime is 47120161423. The reversal of 47120161409 is 90416102174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29721760000 + 17398401409 = 172400^2 + 131903^2 .

It is a cyclic number.

It is not a de Polignac number, because 47120161409 - 2¹² = 47120157313 is a prime.

It is a super-2 number, since 2×47120161409² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47120161909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23560080704 + 23560080705.

It is an arithmetic number, because the mean of its divisors is an integer number (23560080705).

Almost surely, 2^47120161409 is an apocalyptic number.

It is an amenable number.

47120161409 is a deficient number, since it is larger than the sum of its proper divisors (1).

47120161409 is an equidigital number, since it uses as much as digits as its factorization.

47120161409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 47120161409 in words is "forty-seven billion, one hundred twenty million, one hundred sixty-one thousand, four hundred nine".