2620530045 has 144 divisors (see below), whose sum is σ = 5531535360. Its totient is φ = 1142846208.

The previous prime is 2620530043. The next prime is 2620530061. The reversal of 2620530045 is 5400350262.

2620530045 is a `hidden beast` number, since 2 + 620 + 5 + 30 + 0 + 4 + 5 = 666.

It is not a de Polignac number, because 2620530045 - 2¹ = 2620530043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620530041) 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 143 ways as a sum of consecutive naturals, for example, 6841924 + ... + 6842306.

It is an arithmetic number, because the mean of its divisors is an integer number (38413440).

Almost surely, 2^2620530045 is an apocalyptic number.

It is an amenable number.

2620530045 is an abundant number, since it is smaller than the sum of its proper divisors (2911005315).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2620530045 is a wasteful number, since it uses less digits than its factorization.

2620530045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2620530045 is about 51191.1129494173. The cubic root of 2620530045 is about 1378.6786422537.

The spelling of 2620530045 in words is "two billion, six hundred twenty million, five hundred thirty thousand, forty-five".