1043647420663 has 8 divisors (see below), whose sum is σ = 1047585198240. Its totient is φ = 1039710867360.

The previous prime is 1043647420633. The next prime is 1043647420667. The reversal of 1043647420663 is 3660247463401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1043647420663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043647420667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1420398 + ... + 2026036.

It is an arithmetic number, because the mean of its divisors is an integer number (130948149780).

Almost surely, 2^{1043647420663} is an apocalyptic number.

1043647420663 is a deficient number, since it is larger than the sum of its proper divisors (3937777577).

1043647420663 is an equidigital number, since it uses as much as digits as its factorization.

1043647420663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612137.

The product of its (nonzero) digits is 1741824, while the sum is 46.

The spelling of 1043647420663 in words is "one trillion, forty-three billion, six hundred forty-seven million, four hundred twenty thousand, six hundred sixty-three".