47900633281 has 2 divisors, whose sum is σ = 47900633282. Its totient is φ = 47900633280.

The previous prime is 47900633273. The next prime is 47900633299. The reversal of 47900633281 is 18233600974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35957640625 + 11942992656 = 189625^2 + 109284^2 .

It is a cyclic number.

It is not a de Polignac number, because 47900633281 - 2³ = 47900633273 is a prime.

It is a super-2 number, since 2×47900633281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47900633251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23950316640 + 23950316641.

It is an arithmetic number, because the mean of its divisors is an integer number (23950316641).

Almost surely, 2^47900633281 is an apocalyptic number.

It is an amenable number.

47900633281 is a deficient number, since it is larger than the sum of its proper divisors (1).

47900633281 is an equidigital number, since it uses as much as digits as its factorization.

47900633281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 47900633281 in words is "forty-seven billion, nine hundred million, six hundred thirty-three thousand, two hundred eighty-one".