8945337977 has 2 divisors, whose sum is σ = 8945337978. Its totient is φ = 8945337976.

The previous prime is 8945337943. The next prime is 8945338081. The reversal of 8945337977 is 7797335498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6536884201 + 2408453776 = 80851^2 + 49076^2 .

It is a cyclic number.

It is not a de Polignac number, because 8945337977 - 2¹⁸ = 8945075833 is a prime.

It is not a weakly prime, because it can be changed into another prime (8945337937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4472668988 + 4472668989.

It is an arithmetic number, because the mean of its divisors is an integer number (4472668989).

Almost surely, 2^8945337977 is an apocalyptic number.

It is an amenable number.

8945337977 is a deficient number, since it is larger than the sum of its proper divisors (1).

8945337977 is an equidigital number, since it uses as much as digits as its factorization.

8945337977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40007520, while the sum is 62.

The square root of 8945337977 is about 94579.7968754427. The cubic root of 8945337977 is about 2075.8640985809.

The spelling of 8945337977 in words is "eight billion, nine hundred forty-five million, three hundred thirty-seven thousand, nine hundred seventy-seven".