2072117686 has 48 divisors (see below), whose sum is σ = 3384339840. Its totient is φ = 949294080.

The previous prime is 2072117653. The next prime is 2072117689. The reversal of 2072117686 is 6867112702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2072117689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19010200 + ... + 19010308.

It is an arithmetic number, because the mean of its divisors is an integer number (70507080).

Almost surely, 2^2072117686 is an apocalyptic number.

2072117686 is a deficient number, since it is larger than the sum of its proper divisors (1312222154).

2072117686 is a wasteful number, since it uses less digits than its factorization.

2072117686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 2072117686 is about 45520.5193951036. The cubic root of 2072117686 is about 1274.8863537818.

The spelling of 2072117686 in words is "two billion, seventy-two million, one hundred seventeen thousand, six hundred eighty-six".