12367659381640 has 64 divisors (see below), whose sum is σ = 28970149186800. Its totient is φ = 4746051867648.

The previous prime is 12367659381607. The next prime is 12367659381667. The reversal of 12367659381640 is 4618395676321.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6617725380036 + 5749934001604 = 2572494^2 + 2397902^2 .

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, 33772579 + ... + 34136818.

It is a 1-persistent number, because it is pandigital, but 2⋅12367659381640 = 24735318763280 is not.

Almost surely, 2^{12367659381640} is an apocalyptic number.

12367659381640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12367659381640 is an abundant number, since it is smaller than the sum of its proper divisors (16602489805160).

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

12367659381640 is a wasteful number, since it uses less digits than its factorization.

12367659381640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67909594 (or 67909590 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 12367659381640 in words is "twelve trillion, three hundred sixty-seven billion, six hundred fifty-nine million, three hundred eighty-one thousand, six hundred forty".