1001942942841 has 63 divisors (see below), whose sum is σ = 1519150085877. Its totient is φ = 660520743480.

The previous prime is 1001942942773. The next prime is 1001942942867. The reversal of 1001942942841 is 1482492491001.

The square root of 1001942942841 is 1000971.

It is a perfect power (a square), and thus also a powerful number.

1001942942841 is a `hidden beast` number, since 10 + 0 + 194 + 29 + 428 + 4 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1001942942841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001942952841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 3540434286 + ... + 3540434568.

Almost surely, 2^{1001942942841} is an apocalyptic number.

1001942942841 is the 1000971-st square number.

1001942942841 is the 500486-th centered octagonal number.

It is an amenable number.

1001942942841 is a deficient number, since it is larger than the sum of its proper divisors (517207143036).

1001942942841 is an frugal number, since it uses more digits than its factorization.

1001942942841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 1001942942841 in words is "one trillion, one billion, nine hundred forty-two million, nine hundred forty-two thousand, eight hundred forty-one".