102173493653563 has 2 divisors, whose sum is σ = 102173493653564. Its totient is φ = 102173493653562.

The previous prime is 102173493653557. The next prime is 102173493653573. The reversal of 102173493653563 is 365356394371201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102173493653563 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102173493653498 and 102173493653507.

It is not a weakly prime, because it can be changed into another prime (102173493653533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51086746826781 + 51086746826782.

It is an arithmetic number, because the mean of its divisors is an integer number (51086746826782).

Almost surely, 2^{102173493653563} is an apocalyptic number.

102173493653563 is a deficient number, since it is larger than the sum of its proper divisors (1).

102173493653563 is an equidigital number, since it uses as much as digits as its factorization.

102173493653563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36741600, while the sum is 58.

The spelling of 102173493653563 in words is "one hundred two trillion, one hundred seventy-three billion, four hundred ninety-three million, six hundred fifty-three thousand, five hundred sixty-three".