2626021045 has 4 divisors (see below), whose sum is σ = 3151225260. Its totient is φ = 2100816832.

The previous prime is 2626021039. The next prime is 2626021087. The reversal of 2626021045 is 5401206262.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5401206262 = 2 ⋅2700603131.

It can be written as a sum of positive squares in 2 ways, for example, as 1604643364 + 1021377681 = 40058^2 + 31959^2 .

It is a cyclic number.

It is not a de Polignac number, because 2626021045 - 2¹³ = 2626012853 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 262602100 + ... + 262602109.

It is an arithmetic number, because the mean of its divisors is an integer number (787806315).

Almost surely, 2^2626021045 is an apocalyptic number.

It is an amenable number.

2626021045 is a deficient number, since it is larger than the sum of its proper divisors (525204215).

2626021045 is an equidigital number, since it uses as much as digits as its factorization.

2626021045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525204214.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2626021045 is about 51244.7172399263. The cubic root of 2626021045 is about 1379.6409212429.

The spelling of 2626021045 in words is "two billion, six hundred twenty-six million, twenty-one thousand, forty-five".