123284528677 has 4 divisors (see below), whose sum is σ = 128644725600. Its totient is φ = 117924331756.

The previous prime is 123284528651. The next prime is 123284528681. The reversal of 123284528677 is 776825482321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123284528677 - 2³⁵ = 88924790309 is a prime.

It is a super-2 number, since 2×123284528677² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123284528687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2680098427 + ... + 2680098472.

It is an arithmetic number, because the mean of its divisors is an integer number (32161181400).

Almost surely, 2^123284528677 is an apocalyptic number.

It is an amenable number.

123284528677 is a deficient number, since it is larger than the sum of its proper divisors (5360196923).

123284528677 is an equidigital number, since it uses as much as digits as its factorization.

123284528677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5360196922.

The product of its digits is 9031680, while the sum is 55.

The spelling of 123284528677 in words is "one hundred twenty-three billion, two hundred eighty-four million, five hundred twenty-eight thousand, six hundred seventy-seven".