2827975681 has 4 divisors (see below), whose sum is σ = 2828506032. Its totient is φ = 2827445332.

The previous prime is 2827975673. The next prime is 2827975727. The reversal of 2827975681 is 1865797282.

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 2827975681 - 2³ = 2827975673 is a prime.

It is a super-2 number, since 2×2827975681² = 15994892904654827522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2827975621) 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, 257095 + ... + 267868.

It is an arithmetic number, because the mean of its divisors is an integer number (707126508).

Almost surely, 2^2827975681 is an apocalyptic number.

It is an amenable number.

2827975681 is a deficient number, since it is larger than the sum of its proper divisors (530351).

2827975681 is an equidigital number, since it uses as much as digits as its factorization.

2827975681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530350.

The product of its digits is 3386880, while the sum is 55.

The square root of 2827975681 is about 53178.7145482100. The cubic root of 2827975681 is about 1414.1383177453.

The spelling of 2827975681 in words is "two billion, eight hundred twenty-seven million, nine hundred seventy-five thousand, six hundred eighty-one".