2067967845 has 18 divisors (see below), whose sum is σ = 3585006438. Its totient is φ = 1102753488.

The previous prime is 2067967841. The next prime is 2067967901. The reversal of 2067967845 is 5487697602.

It can be written as a sum of positive squares in only one way, i.e., 1654374276 + 413593569 = 40674^2 + 20337^2 .

It is not a de Polignac number, because 2067967845 - 2² = 2067967841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2067967791 and 2067967800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2067967841) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 301666 + ... + 308444.

Almost surely, 2^2067967845 is an apocalyptic number.

It is an amenable number.

2067967845 is a deficient number, since it is larger than the sum of its proper divisors (1517038593).

2067967845 is an frugal number, since it uses more digits than its factorization.

2067967845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13569 (or 6787 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The square root of 2067967845 is about 45474.9144584132. The cubic root of 2067967845 is about 1274.0347111277.

The spelling of 2067967845 in words is "two billion, sixty-seven million, nine hundred sixty-seven thousand, eight hundred forty-five".