10196458939921 has 2 divisors, whose sum is σ = 10196458939922. Its totient is φ = 10196458939920.

The previous prime is 10196458939883. The next prime is 10196458939957. The reversal of 10196458939921 is 12993985469101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9639441515025 + 557017424896 = 3104745^2 + 746336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10196458939921 is a prime.

It is not a weakly prime, because it can be changed into another prime (10196458937921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5098229469960 + 5098229469961.

It is an arithmetic number, because the mean of its divisors is an integer number (5098229469961).

Almost surely, 2^{10196458939921} is an apocalyptic number.

It is an amenable number.

10196458939921 is a deficient number, since it is larger than the sum of its proper divisors (1).

10196458939921 is an equidigital number, since it uses as much as digits as its factorization.

10196458939921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37791360, while the sum is 67.

The spelling of 10196458939921 in words is "ten trillion, one hundred ninety-six billion, four hundred fifty-eight million, nine hundred thirty-nine thousand, nine hundred twenty-one".