63940003073 has 2 divisors, whose sum is σ = 63940003074. Its totient is φ = 63940003072.

The previous prime is 63940003027. The next prime is 63940003081. The reversal of 63940003073 is 37030004936.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45227678224 + 18712324849 = 212668^2 + 136793^2 .

It is a cyclic number.

It is not a de Polignac number, because 63940003073 - 2¹⁴ = 63939986689 is a prime.

It is not a weakly prime, because it can be changed into another prime (63940003273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31970001536 + 31970001537.

It is an arithmetic number, because the mean of its divisors is an integer number (31970001537).

Almost surely, 2^63940003073 is an apocalyptic number.

It is an amenable number.

63940003073 is a deficient number, since it is larger than the sum of its proper divisors (1).

63940003073 is an equidigital number, since it uses as much as digits as its factorization.

63940003073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 35.

The spelling of 63940003073 in words is "sixty-three billion, nine hundred forty million, three thousand, seventy-three".