452740072649 has 2 divisors, whose sum is σ = 452740072650. Its totient is φ = 452740072648.

The previous prime is 452740072597. The next prime is 452740072667. The reversal of 452740072649 is 946270047254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273065818249 + 179674254400 = 522557^2 + 423880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-452740072649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 452740072597 and 452740072606.

It is not a weakly prime, because it can be changed into another prime (452740072679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226370036324 + 226370036325.

It is an arithmetic number, because the mean of its divisors is an integer number (226370036325).

Almost surely, 2^452740072649 is an apocalyptic number.

It is an amenable number.

452740072649 is a deficient number, since it is larger than the sum of its proper divisors (1).

452740072649 is an equidigital number, since it uses as much as digits as its factorization.

452740072649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 452740072649 in words is "four hundred fifty-two billion, seven hundred forty million, seventy-two thousand, six hundred forty-nine".