2011901967 has 12 divisors (see below), whose sum is σ = 2914317744. Its totient is φ = 1337466240.

The previous prime is 2011901959. The next prime is 2011901993. The reversal of 2011901967 is 7691091102.

It is not a de Polignac number, because 2011901967 - 2³ = 2011901959 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011901917) 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, 313459 + ... + 319812.

It is an arithmetic number, because the mean of its divisors is an integer number (242859812).

Almost surely, 2^2011901967 is an apocalyptic number.

2011901967 is a deficient number, since it is larger than the sum of its proper divisors (902415777).

2011901967 is a wasteful number, since it uses less digits than its factorization.

2011901967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633630 (or 633627 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 2011901967 is about 44854.2302018438. The cubic root of 2011901967 is about 1262.4153650025.

The spelling of 2011901967 in words is "two billion, eleven million, nine hundred one thousand, nine hundred sixty-seven".