45647534281 has 2 divisors, whose sum is σ = 45647534282. Its totient is φ = 45647534280.

The previous prime is 45647534237. The next prime is 45647534287. The reversal of 45647534281 is 18243574654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45429085881 + 218448400 = 213141^2 + 14780^2 .

It is a cyclic number.

It is not a de Polignac number, because 45647534281 - 2¹⁵ = 45647501513 is a prime.

It is a super-2 number, since 2×45647534281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45647534287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22823767140 + 22823767141.

It is an arithmetic number, because the mean of its divisors is an integer number (22823767141).

Almost surely, 2^45647534281 is an apocalyptic number.

It is an amenable number.

45647534281 is a deficient number, since it is larger than the sum of its proper divisors (1).

45647534281 is an equidigital number, since it uses as much as digits as its factorization.

45647534281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3225600, while the sum is 49.

The spelling of 45647534281 in words is "forty-five billion, six hundred forty-seven million, five hundred thirty-four thousand, two hundred eighty-one".