123796861663 has 2 divisors, whose sum is σ = 123796861664. Its totient is φ = 123796861662.

The previous prime is 123796861649. The next prime is 123796861667. The reversal of 123796861663 is 366168697321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123796861663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123796861598 and 123796861607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123796861667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61898430831 + 61898430832.

It is an arithmetic number, because the mean of its divisors is an integer number (61898430832).

Almost surely, 2^123796861663 is an apocalyptic number.

123796861663 is a deficient number, since it is larger than the sum of its proper divisors (1).

123796861663 is an equidigital number, since it uses as much as digits as its factorization.

123796861663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11757312, while the sum is 58.

The spelling of 123796861663 in words is "one hundred twenty-three billion, seven hundred ninety-six million, eight hundred sixty-one thousand, six hundred sixty-three".