2069721487 has 8 divisors (see below), whose sum is σ = 2079725616. Its totient is φ = 2059732992.

The previous prime is 2069721481. The next prime is 2069721551. The reversal of 2069721487 is 7841279602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2069721487 - 2¹¹ = 2069719439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2069721481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326593 + ... + 332869.

It is an arithmetic number, because the mean of its divisors is an integer number (259965702).

Almost surely, 2^2069721487 is an apocalyptic number.

2069721487 is a deficient number, since it is larger than the sum of its proper divisors (10004129).

2069721487 is a wasteful number, since it uses less digits than its factorization.

2069721487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7817.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 2069721487 is about 45494.1917941181. The cubic root of 2069721487 is about 1274.3947376058.

The spelling of 2069721487 in words is "two billion, sixty-nine million, seven hundred twenty-one thousand, four hundred eighty-seven".