123488771652 has 36 divisors (see below), whose sum is σ = 317442893040. Its totient is φ = 40465246512.

The previous prime is 123488771641. The next prime is 123488771687. The reversal of 123488771652 is 256177884321.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29067738 + ... + 29071985.

It is an arithmetic number, because the mean of its divisors is an integer number (8817858140).

Almost surely, 2^123488771652 is an apocalyptic number.

123488771652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123488771652 is an abundant number, since it is smaller than the sum of its proper divisors (193954121388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123488771652 is a wasteful number, since it uses less digits than its factorization.

123488771652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58139792 (or 58139787 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The spelling of 123488771652 in words is "one hundred twenty-three billion, four hundred eighty-eight million, seven hundred seventy-one thousand, six hundred fifty-two".