246064933856921 has 2 divisors, whose sum is σ = 246064933856922. Its totient is φ = 246064933856920.

The previous prime is 246064933856899. The next prime is 246064933856981. The reversal of 246064933856921 is 129658339460642.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244943158435600 + 1121775421321 = 15650660^2 + 1059139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-246064933856921 is a prime.

It is not a weakly prime, because it can be changed into another prime (246064933856981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123032466928460 + 123032466928461.

It is an arithmetic number, because the mean of its divisors is an integer number (123032466928461).

Almost surely, 2^{246064933856921} is an apocalyptic number.

It is an amenable number.

246064933856921 is a deficient number, since it is larger than the sum of its proper divisors (1).

246064933856921 is an equidigital number, since it uses as much as digits as its factorization.

246064933856921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403107840, while the sum is 68.

The spelling of 246064933856921 in words is "two hundred forty-six trillion, sixty-four billion, nine hundred thirty-three million, eight hundred fifty-six thousand, nine hundred twenty-one".