12467912346778 has 32 divisors (see below), whose sum is σ = 22729657190400. Its totient is φ = 5007112844544.

The previous prime is 12467912346763. The next prime is 12467912346793. The reversal of 12467912346778 is 87764321976421.

It is an interprime number because it is at equal distance from previous prime (12467912346763) and next prime (12467912346793).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114325818 + ... + 114434821.

It is an arithmetic number, because the mean of its divisors is an integer number (710301787200).

Almost surely, 2^{12467912346778} is an apocalyptic number.

12467912346778 is a deficient number, since it is larger than the sum of its proper divisors (10261744843622).

12467912346778 is a wasteful number, since it uses less digits than its factorization.

12467912346778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228760894.

The product of its digits is 170698752, while the sum is 67.

The spelling of 12467912346778 in words is "twelve trillion, four hundred sixty-seven billion, nine hundred twelve million, three hundred forty-six thousand, seven hundred seventy-eight".