2067877381 has 4 divisors (see below), whose sum is σ = 2074484332. Its totient is φ = 2061270432.

The previous prime is 2067877367. The next prime is 2067877417. The reversal of 2067877381 is 1837787602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3629025 + 2064248356 = 1905^2 + 45434^2 .

It is a cyclic number.

It is not a de Polignac number, because 2067877381 - 2¹³ = 2067869189 is a prime.

It is a super-2 number, since 2×2067877381² = 8552233725702838322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2067877081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3303006 + ... + 3303631.

It is an arithmetic number, because the mean of its divisors is an integer number (518621083).

Almost surely, 2^2067877381 is an apocalyptic number.

It is an amenable number.

2067877381 is a deficient number, since it is larger than the sum of its proper divisors (6606951).

2067877381 is an equidigital number, since it uses as much as digits as its factorization.

2067877381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6606950.

The product of its (nonzero) digits is 790272, while the sum is 49.

The square root of 2067877381 is about 45473.9197892594. The cubic root of 2067877381 is about 1274.0161331540.

The spelling of 2067877381 in words is "two billion, sixty-seven million, eight hundred seventy-seven thousand, three hundred eighty-one".