13646741043 has 72 divisors (see below), whose sum is σ = 20936936304. Its totient is φ = 7896994560.

The previous prime is 13646741039. The next prime is 13646741131. The reversal of 13646741043 is 34014764631.

It is not a de Polignac number, because 13646741043 - 2² = 13646741039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 13646740992 and 13646741010.

It is not an unprimeable number, because it can be changed into a prime (13646741743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 18027021 + ... + 18027777.

It is an arithmetic number, because the mean of its divisors is an integer number (290790782).

Almost surely, 2^13646741043 is an apocalyptic number.

13646741043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13646741043 is a deficient number, since it is larger than the sum of its proper divisors (7290195261).

13646741043 is a wasteful number, since it uses less digits than its factorization.

13646741043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 13646741043 in words is "thirteen billion, six hundred forty-six million, seven hundred forty-one thousand, forty-three".