2091817072 has 10 divisors (see below), whose sum is σ = 4052895608. Its totient is φ = 1045908528.

The previous prime is 2091817069. The next prime is 2091817129. The reversal of 2091817072 is 2707181902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65369268 + ... + 65369299.

Almost surely, 2^2091817072 is an apocalyptic number.

It is an amenable number.

2091817072 is a deficient number, since it is larger than the sum of its proper divisors (1961078536).

2091817072 is a wasteful number, since it uses less digits than its factorization.

2091817072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130738575 (or 130738569 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 2091817072 is about 45736.3867396628. The cubic root of 2091817072 is about 1278.9136844419.

Adding to 2091817072 its reverse (2707181902), we get a palindrome (4798998974).

The spelling of 2091817072 in words is "two billion, ninety-one million, eight hundred seventeen thousand, seventy-two".