12367771776 has 48 divisors (see below), whose sum is σ = 35589554910. Its totient is φ = 4122590208.

The previous prime is 12367771771. The next prime is 12367771789. The reversal of 12367771776 is 67717776321.

It can be written as a sum of positive squares in only one way, i.e., 6835982400 + 5531789376 = 82680^2 + 74376^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (12367771771) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 5366805 + ... + 5369108.

Almost surely, 2^12367771776 is an apocalyptic number.

12367771776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12367771776 is an abundant number, since it is smaller than the sum of its proper divisors (23221783134).

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

12367771776 is a wasteful number, since it uses less digits than its factorization.

12367771776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10735933 (or 10735918 counting only the distinct ones).

The product of its digits is 3630312, while the sum is 54.

The spelling of 12367771776 in words is "twelve billion, three hundred sixty-seven million, seven hundred seventy-one thousand, seven hundred seventy-six".