123959347755 has 16 divisors (see below), whose sum is σ = 201586350624. Its totient is φ = 65027854080.

The previous prime is 123959347741. The next prime is 123959347891. The reversal of 123959347755 is 557743959321.

It is not a de Polignac number, because 123959347755 - 2⁵ = 123959347723 is a prime.

It is a super-4 number, since 4×123959347755⁴ (a number of 45 digits) contains 4444 as substring.

It is an unprimeable number.

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, 67736434 + ... + 67738263.

It is an arithmetic number, because the mean of its divisors is an integer number (12599146914).

Almost surely, 2^123959347755 is an apocalyptic number.

123959347755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123959347755 is a deficient number, since it is larger than the sum of its proper divisors (77627002869).

123959347755 is a wasteful number, since it uses less digits than its factorization.

123959347755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135474766.

The product of its digits is 35721000, while the sum is 60.

The spelling of 123959347755 in words is "one hundred twenty-three billion, nine hundred fifty-nine million, three hundred forty-seven thousand, seven hundred fifty-five".