1050384067821 has 40 divisors (see below), whose sum is σ = 1724803885728. Its totient is φ = 631736820000.

The previous prime is 1050384067783. The next prime is 1050384067903. The reversal of 1050384067821 is 1287604830501.

1050384067821 is a `hidden beast` number, since 1 + 0 + 503 + 8 + 4 + 0 + 67 + 82 + 1 = 666.

It is not a de Polignac number, because 1050384067821 - 2⁷ = 1050384067693 is a prime.

It is a super-5 number, since 5×1050384067821⁵ (a number of 61 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050384067321) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4382830 + ... + 4616271.

Almost surely, 2^{1050384067821} is an apocalyptic number.

1050384067821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1050384067821 is a deficient number, since it is larger than the sum of its proper divisors (674419817907).

1050384067821 is a wasteful number, since it uses less digits than its factorization.

1050384067821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8999255 (or 8999246 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 1050384067821 in words is "one trillion, fifty billion, three hundred eighty-four million, sixty-seven thousand, eight hundred twenty-one".