12350177778 has 16 divisors (see below), whose sum is σ = 24701624640. Its totient is φ = 4116514416.

The previous prime is 12350177767. The next prime is 12350177789. The reversal of 12350177778 is 87777105321.

It is an interprime number because it is at equal distance from previous prime (12350177767) and next prime (12350177789).

It is a super-2 number, since 2×12350177778² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 114283 + ... + 194321.

It is an arithmetic number, because the mean of its divisors is an integer number (1543851540).

Almost surely, 2^12350177778 is an apocalyptic number.

12350177778 is an abundant number, since it is smaller than the sum of its proper divisors (12351446862).

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

12350177778 is a wasteful number, since it uses less digits than its factorization.

12350177778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105761.

The product of its (nonzero) digits is 576240, while the sum is 48.

The spelling of 12350177778 in words is "twelve billion, three hundred fifty million, one hundred seventy-seven thousand, seven hundred seventy-eight".