2027636645 has 32 divisors (see below), whose sum is σ = 2669829120. Its totient is φ = 1473373440.

The previous prime is 2027636629. The next prime is 2027636647. The reversal of 2027636645 is 5466367202.

It is not a de Polignac number, because 2027636645 - 2⁴ = 2027636629 is a prime.

It is a super-2 number, since 2×2027636645² = 8222620728293712050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2027636647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198452 + ... + 208418.

It is an arithmetic number, because the mean of its divisors is an integer number (83432160).

Almost surely, 2^2027636645 is an apocalyptic number.

It is an amenable number.

2027636645 is a deficient number, since it is larger than the sum of its proper divisors (642192475).

2027636645 is a wasteful number, since it uses less digits than its factorization.

2027636645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10085.

The product of its (nonzero) digits is 362880, while the sum is 41.

The square root of 2027636645 is about 45029.2865255491. The cubic root of 2027636645 is about 1265.6978542586.

The spelling of 2027636645 in words is "two billion, twenty-seven million, six hundred thirty-six thousand, six hundred forty-five".