1047919648866 has 32 divisors (see below), whose sum is σ = 2147305579776. Its totient is φ = 340731600000.

The previous prime is 1047919648837. The next prime is 1047919648877. The reversal of 1047919648866 is 6688469197401.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1047919648866.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1187991 + ... + 1872741.

It is an arithmetic number, because the mean of its divisors is an integer number (67103299368).

Almost surely, 2^{1047919648866} is an apocalyptic number.

1047919648866 is an abundant number, since it is smaller than the sum of its proper divisors (1099385930910).

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

1047919648866 is a wasteful number, since it uses less digits than its factorization.

1047919648866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691018.

The product of its (nonzero) digits is 125411328, while the sum is 69.

The spelling of 1047919648866 in words is "one trillion, forty-seven billion, nine hundred nineteen million, six hundred forty-eight thousand, eight hundred sixty-six".