2028261863 has 8 divisors (see below), whose sum is σ = 2051478000. Its totient is φ = 2005129728.

The previous prime is 2028261853. The next prime is 2028261871. The reversal of 2028261863 is 3681628202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2028261863 - 2⁸ = 2028261607 is a prime.

It is a super-2 number, since 2×2028261863² = 8227692369800461538, 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 (2028261803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28220 + ... + 69662.

It is an arithmetic number, because the mean of its divisors is an integer number (256434750).

Almost surely, 2^2028261863 is an apocalyptic number.

2028261863 is a deficient number, since it is larger than the sum of its proper divisors (23216137).

2028261863 is a wasteful number, since it uses less digits than its factorization.

2028261863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42001.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 2028261863 is about 45036.2283389717. The cubic root of 2028261863 is about 1265.8279327519.

The spelling of 2028261863 in words is "two billion, twenty-eight million, two hundred sixty-one thousand, eight hundred sixty-three".