63373683449 has 2 divisors, whose sum is σ = 63373683450. Its totient is φ = 63373683448.

The previous prime is 63373683433. The next prime is 63373683467. The reversal of 63373683449 is 94438637336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60845102224 + 2528581225 = 246668^2 + 50285^2 .

It is a cyclic number.

It is not a de Polignac number, because 63373683449 - 2⁴ = 63373683433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63373683394 and 63373683403.

It is not a weakly prime, because it can be changed into another prime (63373683049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31686841724 + 31686841725.

It is an arithmetic number, because the mean of its divisors is an integer number (31686841725).

Almost surely, 2^63373683449 is an apocalyptic number.

It is an amenable number.

63373683449 is a deficient number, since it is larger than the sum of its proper divisors (1).

63373683449 is an equidigital number, since it uses as much as digits as its factorization.

63373683449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23514624, while the sum is 56.

The spelling of 63373683449 in words is "sixty-three billion, three hundred seventy-three million, six hundred eighty-three thousand, four hundred forty-nine".