64302029993 has 2 divisors, whose sum is σ = 64302029994. Its totient is φ = 64302029992.

The previous prime is 64302029923. The next prime is 64302030017. The reversal of 64302029993 is 39992020346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38782606489 + 25519423504 = 196933^2 + 159748^2 .

It is a cyclic number.

It is not a de Polignac number, because 64302029993 - 2¹⁶ = 64301964457 is a prime.

It is a super-2 number, since 2×64302029993² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64302029923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32151014996 + 32151014997.

It is an arithmetic number, because the mean of its divisors is an integer number (32151014997).

Almost surely, 2^64302029993 is an apocalyptic number.

It is an amenable number.

64302029993 is a deficient number, since it is larger than the sum of its proper divisors (1).

64302029993 is an equidigital number, since it uses as much as digits as its factorization.

64302029993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 47.

The spelling of 64302029993 in words is "sixty-four billion, three hundred two million, twenty-nine thousand, nine hundred ninety-three".