47280032781931 has 2 divisors, whose sum is σ = 47280032781932. Its totient is φ = 47280032781930.

The previous prime is 47280032781907. The next prime is 47280032782009. The reversal of 47280032781931 is 13918723008274.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47280032781931 - 2⁷ = 47280032781803 is a prime.

It is a super-2 number, since 2×47280032781931² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47280032787931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23640016390965 + 23640016390966.

It is an arithmetic number, because the mean of its divisors is an integer number (23640016390966).

Almost surely, 2^{47280032781931} is an apocalyptic number.

47280032781931 is a deficient number, since it is larger than the sum of its proper divisors (1).

47280032781931 is an equidigital number, since it uses as much as digits as its factorization.

47280032781931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 47280032781931 in words is "forty-seven trillion, two hundred eighty billion, thirty-two million, seven hundred eighty-one thousand, nine hundred thirty-one".