47966694169 has 9 divisors (see below), whose sum is σ = 50628520917. Its totient is φ = 45438189084.

The previous prime is 47966694157. The next prime is 47966694179. The reversal of 47966694169 is 96149666974.

It is a happy number.

The square root of 47966694169 is 219013.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 47966694169 - 2⁵ = 47966694137 is a prime.

It is a super-2 number, since 2×47966694169² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47966694119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4155484 + ... + 4167010.

It is an arithmetic number, because the mean of its divisors is an integer number (5625391213).

Almost surely, 2^47966694169 is an apocalyptic number.

47966694169 is the 219013-rd square number.

47966694169 is the 109507-th centered octagonal number.

It is an amenable number.

47966694169 is a deficient number, since it is larger than the sum of its proper divisors (2661826748).

47966694169 is an frugal number, since it uses more digits than its factorization.

47966694169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23092 (or 11546 counting only the distinct ones).

The product of its digits is 105815808, while the sum is 67.

The spelling of 47966694169 in words is "forty-seven billion, nine hundred sixty-six million, six hundred ninety-four thousand, one hundred sixty-nine".