2086378577 has 4 divisors (see below), whose sum is σ = 2088669696. Its totient is φ = 2084087460.

The previous prime is 2086378571. The next prime is 2086378621. The reversal of 2086378577 is 7758736802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2086378577 - 2¹² = 2086374481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2086378571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1144193 + ... + 1146014.

It is an arithmetic number, because the mean of its divisors is an integer number (522167424).

Almost surely, 2^2086378577 is an apocalyptic number.

It is an amenable number.

2086378577 is a deficient number, since it is larger than the sum of its proper divisors (2291119).

2086378577 is an equidigital number, since it uses as much as digits as its factorization.

2086378577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291118.

The product of its (nonzero) digits is 3951360, while the sum is 53.

The square root of 2086378577 is about 45676.8932503076. The cubic root of 2086378577 is about 1277.8043774153.

The spelling of 2086378577 in words is "two billion, eighty-six million, three hundred seventy-eight thousand, five hundred seventy-seven".