14959794764921 has 2 divisors, whose sum is σ = 14959794764922. Its totient is φ = 14959794764920.

The previous prime is 14959794764917. The next prime is 14959794764963. The reversal of 14959794764921 is 12946749795941.

14959794764921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10481153726521 + 4478641038400 = 3237461^2 + 2116280^2 .

It is a cyclic number.

It is not a de Polignac number, because 14959794764921 - 2² = 14959794764917 is a prime.

It is not a weakly prime, because it can be changed into another prime (14959794766921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7479897382460 + 7479897382461.

It is an arithmetic number, because the mean of its divisors is an integer number (7479897382461).

Almost surely, 2^{14959794764921} is an apocalyptic number.

It is an amenable number.

14959794764921 is a deficient number, since it is larger than the sum of its proper divisors (1).

14959794764921 is an equidigital number, since it uses as much as digits as its factorization.

14959794764921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1234517760, while the sum is 77.

The spelling of 14959794764921 in words is "fourteen trillion, nine hundred fifty-nine billion, seven hundred ninety-four million, seven hundred sixty-four thousand, nine hundred twenty-one".