2001072869443 has 2 divisors, whose sum is σ = 2001072869444. Its totient is φ = 2001072869442.

The previous prime is 2001072869417. The next prime is 2001072869461. The reversal of 2001072869443 is 3449682701002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001072869443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001072869393 and 2001072869402.

It is not a weakly prime, because it can be changed into another prime (2001072869483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000536434721 + 1000536434722.

It is an arithmetic number, because the mean of its divisors is an integer number (1000536434722).

Almost surely, 2^{2001072869443} is an apocalyptic number.

2001072869443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001072869443 is an equidigital number, since it uses as much as digits as its factorization.

2001072869443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 2001072869443 in words is "two trillion, one billion, seventy-two million, eight hundred sixty-nine thousand, four hundred forty-three".