1346813346681 has 64 divisors (see below), whose sum is σ = 2224802764800. Its totient is φ = 798340536000.

The previous prime is 1346813346583. The next prime is 1346813346701. The reversal of 1346813346681 is 1866433186431.

1346813346681 is a `hidden beast` number, since 1 + 3 + 46 + 8 + 133 + 466 + 8 + 1 = 666.

It is not a de Polignac number, because 1346813346681 - 2⁷ = 1346813346553 is a prime.

It is a super-2 number, since 2×1346813346681² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1346813346181) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3256956 + ... + 3647106.

It is an arithmetic number, because the mean of its divisors is an integer number (34762543200).

Almost surely, 2^{1346813346681} is an apocalyptic number.

1346813346681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1346813346681 is a deficient number, since it is larger than the sum of its proper divisors (877989418119).

1346813346681 is a wasteful number, since it uses less digits than its factorization.

1346813346681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390427 (or 390421 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The spelling of 1346813346681 in words is "one trillion, three hundred forty-six billion, eight hundred thirteen million, three hundred forty-six thousand, six hundred eighty-one".