1063898073891 has 48 divisors (see below), whose sum is σ = 1624725385920. Its totient is φ = 669858336000.

The previous prime is 1063898073881. The next prime is 1063898073907. The reversal of 1063898073891 is 1983708983601.

1063898073891 is a `hidden beast` number, since 106 + 389 + 8 + 0 + 73 + 89 + 1 = 666.

It is not a de Polignac number, because 1063898073891 - 2²³ = 1063889685283 is a prime.

It is a super-2 number, since 2×1063898073891² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1063898073881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2697106 + ... + 3066296.

It is an arithmetic number, because the mean of its divisors is an integer number (33848445540).

Almost surely, 2^{1063898073891} is an apocalyptic number.

1063898073891 is a deficient number, since it is larger than the sum of its proper divisors (560827312029).

1063898073891 is a wasteful number, since it uses less digits than its factorization.

1063898073891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369468 (or 369465 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 1063898073891 in words is "one trillion, sixty-three billion, eight hundred ninety-eight million, seventy-three thousand, eight hundred ninety-one".