64303413989 has 2 divisors, whose sum is σ = 64303413990. Its totient is φ = 64303413988.

The previous prime is 64303413931. The next prime is 64303414001. The reversal of 64303413989 is 98931430346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44166384964 + 20137029025 = 210158^2 + 141905^2 .

It is a cyclic number.

It is not a de Polignac number, because 64303413989 - 2¹² = 64303409893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64303413389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32151706994 + 32151706995.

It is an arithmetic number, because the mean of its divisors is an integer number (32151706995).

Almost surely, 2^64303413989 is an apocalyptic number.

It is an amenable number.

64303413989 is a deficient number, since it is larger than the sum of its proper divisors (1).

64303413989 is an equidigital number, since it uses as much as digits as its factorization.

64303413989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 64303413989 in words is "sixty-four billion, three hundred three million, four hundred thirteen thousand, nine hundred eighty-nine".