63340464973 has 2 divisors, whose sum is σ = 63340464974. Its totient is φ = 63340464972.

The previous prime is 63340464959. The next prime is 63340464997. The reversal of 63340464973 is 37946404336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63050205604 + 290259369 = 251098^2 + 17037^2 .

It is a cyclic number.

It is not a de Polignac number, because 63340464973 - 2⁹ = 63340464461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63340464953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31670232486 + 31670232487.

It is an arithmetic number, because the mean of its divisors is an integer number (31670232487).

Almost surely, 2^63340464973 is an apocalyptic number.

It is an amenable number.

63340464973 is a deficient number, since it is larger than the sum of its proper divisors (1).

63340464973 is an equidigital number, since it uses as much as digits as its factorization.

63340464973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 49.

The spelling of 63340464973 in words is "sixty-three billion, three hundred forty million, four hundred sixty-four thousand, nine hundred seventy-three".