123498736677 has 12 divisors (see below), whose sum is σ = 178443970380. Its totient is φ = 82306226688.

The previous prime is 123498736661. The next prime is 123498736681. The reversal of 123498736677 is 776637894321.

123498736677 is a `hidden beast` number, since 1 + 2 + 3 + 498 + 73 + 6 + 6 + 77 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 120974578596 + 2524158081 = 347814^2 + 50241^2 .

It is not a de Polignac number, because 123498736677 - 2⁴ = 123498736661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123498736607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2158902 + ... + 2215367.

It is an arithmetic number, because the mean of its divisors is an integer number (14870330865).

Almost surely, 2^123498736677 is an apocalyptic number.

It is an amenable number.

123498736677 is a deficient number, since it is larger than the sum of its proper divisors (54945233703).

123498736677 is a wasteful number, since it uses less digits than its factorization.

123498736677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377412 (or 4377409 counting only the distinct ones).

The product of its digits is 64012032, while the sum is 63.

The spelling of 123498736677 in words is "one hundred twenty-three billion, four hundred ninety-eight million, seven hundred thirty-six thousand, six hundred seventy-seven".