123781088793 has 16 divisors (see below), whose sum is σ = 173961722880. Its totient is φ = 78072284304.

The previous prime is 123781088737. The next prime is 123781088801. The reversal of 123781088793 is 397880187321.

It is not a de Polignac number, because 123781088793 - 2⁸ = 123781088537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (123781088593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1419021 + ... + 1503722.

It is an arithmetic number, because the mean of its divisors is an integer number (10872607680).

Almost surely, 2^123781088793 is an apocalyptic number.

It is an amenable number.

123781088793 is a deficient number, since it is larger than the sum of its proper divisors (50180634087).

123781088793 is a wasteful number, since it uses less digits than its factorization.

123781088793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2923508.

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 123781088793 in words is "one hundred twenty-three billion, seven hundred eighty-one million, eighty-eight thousand, seven hundred ninety-three".