10821415963619 has 2 divisors, whose sum is σ = 10821415963620. Its totient is φ = 10821415963618.

The previous prime is 10821415963597. The next prime is 10821415963651. The reversal of 10821415963619 is 91636951412801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10821415963619 - 2⁸ = 10821415963363 is a prime.

It is a super-2 number, since 2×10821415963619² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (10821415963219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5410707981809 + 5410707981810.

It is an arithmetic number, because the mean of its divisors is an integer number (5410707981810).

Almost surely, 2^{10821415963619} is an apocalyptic number.

10821415963619 is a deficient number, since it is larger than the sum of its proper divisors (1).

10821415963619 is an equidigital number, since it uses as much as digits as its factorization.

10821415963619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 56.

The spelling of 10821415963619 in words is "ten trillion, eight hundred twenty-one billion, four hundred fifteen million, nine hundred sixty-three thousand, six hundred nineteen".