1063891813766 has 32 divisors (see below), whose sum is σ = 1717737736320. Its totient is φ = 492353740800.

The previous prime is 1063891813759. The next prime is 1063891813793. The reversal of 1063891813766 is 6673181983601.

It is a super-2 number, since 2×1063891813766² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 11504051 + ... + 11596161.

It is an arithmetic number, because the mean of its divisors is an integer number (53679304260).

Almost surely, 2^{1063891813766} is an apocalyptic number.

1063891813766 is a deficient number, since it is larger than the sum of its proper divisors (653845922554).

1063891813766 is a wasteful number, since it uses less digits than its factorization.

1063891813766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97760.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 1063891813766 in words is "one trillion, sixty-three billion, eight hundred ninety-one million, eight hundred thirteen thousand, seven hundred sixty-six".