123779377416 has 48 divisors (see below), whose sum is σ = 328722067440. Its totient is φ = 38832743680.

The previous prime is 123779377373. The next prime is 123779377417. The reversal of 123779377416 is 614773977321.

It is not an unprimeable number, because it can be changed into a prime (123779377417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8916030 + ... + 8929901.

It is an arithmetic number, because the mean of its divisors is an integer number (6848376405).

Almost surely, 2^123779377416 is an apocalyptic number.

It is an amenable number.

123779377416 is an abundant number, since it is smaller than the sum of its proper divisors (204942690024).

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

123779377416 is a wasteful number, since it uses less digits than its factorization.

123779377416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17845974 (or 17845953 counting only the distinct ones).

The product of its digits is 9335088, while the sum is 57.

The spelling of 123779377416 in words is "one hundred twenty-three billion, seven hundred seventy-nine million, three hundred seventy-seven thousand, four hundred sixteen".