1847328807664 has 20 divisors (see below), whose sum is σ = 3580190321656. Its totient is φ = 923408724672.

The previous prime is 1847328807661. The next prime is 1847328807689. The reversal of 1847328807664 is 4667088237481.

It is a junction number, because it is equal to n+sod(n) for n = 1847328807596 and 1847328807605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1847328807661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15920334 + ... + 16035949.

Almost surely, 2^{1847328807664} is an apocalyptic number.

It is an amenable number.

1847328807664 is a deficient number, since it is larger than the sum of its proper divisors (1732861513992).

1847328807664 is a wasteful number, since it uses less digits than its factorization.

1847328807664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31959904 (or 31959898 counting only the distinct ones).

The product of its (nonzero) digits is 86704128, while the sum is 64.

The spelling of 1847328807664 in words is "one trillion, eight hundred forty-seven billion, three hundred twenty-eight million, eight hundred seven thousand, six hundred sixty-four".