8463980893637 has 2 divisors, whose sum is σ = 8463980893638. Its totient is φ = 8463980893636.

The previous prime is 8463980893633. The next prime is 8463980893657. The reversal of 8463980893637 is 7363980893648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7406937821761 + 1057043071876 = 2721569^2 + 1028126^2 .

It is a cyclic number.

It is not a de Polignac number, because 8463980893637 - 2² = 8463980893633 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8463980893633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4231990446818 + 4231990446819.

It is an arithmetic number, because the mean of its divisors is an integer number (4231990446819).

Almost surely, 2^{8463980893637} is an apocalyptic number.

It is an amenable number.

8463980893637 is a deficient number, since it is larger than the sum of its proper divisors (1).

8463980893637 is an equidigital number, since it uses as much as digits as its factorization.

8463980893637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128701952, while the sum is 74.

The spelling of 8463980893637 in words is "eight trillion, four hundred sixty-three billion, nine hundred eighty million, eight hundred ninety-three thousand, six hundred thirty-seven".