47846811945321 has 15 divisors (see below), whose sum is σ = 71474960224173. Its totient is φ = 31897833127380.

The previous prime is 47846811945319. The next prime is 47846811945343. The reversal of 47846811945321 is 12354911864874.

It is a happy number.

The square root of 47846811945321 is 6917139.

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

47846811945321 is a `hidden beast` number, since 4 + 7 + 8 + 4 + 6 + 8 + 1 + 1 + 94 + 532 + 1 = 666.

It is not a de Polignac number, because 47846811945321 - 2¹ = 47846811945319 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47846811945721) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 61869966 + ... + 62638536.

Almost surely, 2^{47846811945321} is an apocalyptic number.

47846811945321 is the 6917139-th square number.

47846811945321 is the 3458570-th centered octagonal number.

It is an amenable number.

47846811945321 is a deficient number, since it is larger than the sum of its proper divisors (23628148278852).

47846811945321 is an frugal number, since it uses more digits than its factorization.

47846811945321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537154 (or 768574 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The spelling of 47846811945321 in words is "forty-seven trillion, eight hundred forty-six billion, eight hundred eleven million, nine hundred forty-five thousand, three hundred twenty-one".