5646349755918 has 56 divisors (see below), whose sum is σ = 12888007693608. Its totient is φ = 1854025260912.

The previous prime is 5646349755889. The next prime is 5646349755923. The reversal of 5646349755918 is 8195579436465.

It is a happy number.

5646349755918 is a `hidden beast` number, since 5 + 6 + 4 + 63 + 4 + 9 + 7 + 559 + 1 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 28802821 + ... + 28998192.

Almost surely, 2^{5646349755918} is an apocalyptic number.

5646349755918 is an abundant number, since it is smaller than the sum of its proper divisors (7241657937690).

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

5646349755918 is an equidigital number, since it uses as much as digits as its factorization.

5646349755918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57801100 (or 57801085 counting only the distinct ones).

The product of its digits is 979776000, while the sum is 72.

The spelling of 5646349755918 in words is "five trillion, six hundred forty-six billion, three hundred forty-nine million, seven hundred fifty-five thousand, nine hundred eighteen".