2068468991 has 12 divisors (see below), whose sum is σ = 2204718984. Its totient is φ = 1940166000.

The previous prime is 2068468973. The next prime is 2068469009. The reversal of 2068468991 is 1998648602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2068468973) and next prime (2068469009).

It is not a de Polignac number, because 2068468991 - 2¹⁰ = 2068467967 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 (2068468891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8096 + ... + 64826.

It is an arithmetic number, because the mean of its divisors is an integer number (183726582).

Almost surely, 2^2068468991 is an apocalyptic number.

2068468991 is a deficient number, since it is larger than the sum of its proper divisors (136249993).

2068468991 is a wasteful number, since it uses less digits than its factorization.

2068468991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56870 (or 56851 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 2068468991 is about 45480.4242614336. The cubic root of 2068468991 is about 1274.1376182453.

The spelling of 2068468991 in words is "two billion, sixty-eight million, four hundred sixty-eight thousand, nine hundred ninety-one".