123780504956763 has 16 divisors (see below), whose sum is σ = 174016087817600. Its totient is φ = 78047082532800.

The previous prime is 123780504956659. The next prime is 123780504956791. The reversal of 123780504956763 is 367659405087321.

It is a happy number.

It is not a de Polignac number, because 123780504956763 - 2¹² = 123780504952667 is a prime.

It is a super-2 number, since 2×123780504956763² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123780504956694 and 123780504956703.

It is not an unprimeable number, because it can be changed into a prime (123780504956263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1806611173 + ... + 1806679686.

It is an arithmetic number, because the mean of its divisors is an integer number (10876005488600).

It is a 1-persistent number, because it is pandigital, but 2⋅123780504956763 = 247561009913526 is not.

Almost surely, 2^{123780504956763} is an apocalyptic number.

123780504956763 is a deficient number, since it is larger than the sum of its proper divisors (50235582860837).

123780504956763 is a wasteful number, since it uses less digits than its factorization.

123780504956763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3613291482.

The product of its (nonzero) digits is 228614400, while the sum is 66.

The spelling of 123780504956763 in words is "one hundred twenty-three trillion, seven hundred eighty billion, five hundred four million, nine hundred fifty-six thousand, seven hundred sixty-three".