123344777608 has 16 divisors (see below), whose sum is σ = 249061570380. Its totient is φ = 56928358848.

The previous prime is 123344777579. The next prime is 123344777623. The reversal of 123344777608 is 806777443321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 117815070564 + 5529707044 = 343242^2 + 74362^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593003635 + ... + 593003842.

Almost surely, 2^123344777608 is an apocalyptic number.

It is an amenable number.

123344777608 is an abundant number, since it is smaller than the sum of its proper divisors (125716792772).

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

123344777608 is a wasteful number, since it uses less digits than its factorization.

123344777608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186007496 (or 1186007492 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 52.

The spelling of 123344777608 in words is "one hundred twenty-three billion, three hundred forty-four million, seven hundred seventy-seven thousand, six hundred eight".