123947766424793 has 2 divisors, whose sum is σ = 123947766424794. Its totient is φ = 123947766424792.

The previous prime is 123947766424789. The next prime is 123947766424813. The reversal of 123947766424793 is 397424667749321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121313416692169 + 2634349732624 = 11014237^2 + 1623068^2 .

It is a cyclic number.

It is not a de Polignac number, because 123947766424793 - 2² = 123947766424789 is a prime.

It is a super-3 number, since 3×123947766424793³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123947766424793.

It is not a weakly prime, because it can be changed into another prime (123947766414793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61973883212396 + 61973883212397.

It is an arithmetic number, because the mean of its divisors is an integer number (61973883212397).

Almost surely, 2^{123947766424793} is an apocalyptic number.

It is an amenable number.

123947766424793 is a deficient number, since it is larger than the sum of its proper divisors (1).

123947766424793 is an equidigital number, since it uses as much as digits as its factorization.

123947766424793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304433152, while the sum is 74.

The spelling of 123947766424793 in words is "one hundred twenty-three trillion, nine hundred forty-seven billion, seven hundred sixty-six million, four hundred twenty-four thousand, seven hundred ninety-three".