8620561794 has 64 divisors (see below), whose sum is σ = 18741945600. Its totient is φ = 2627665920.

The previous prime is 8620561769. The next prime is 8620561819. The reversal of 8620561794 is 4971650268.

It is an interprime number because it is at equal distance from previous prime (8620561769) and next prime (8620561819).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3988074 + ... + 3990234.

It is an arithmetic number, because the mean of its divisors is an integer number (292842900).

Almost surely, 2^8620561794 is an apocalyptic number.

8620561794 is an abundant number, since it is smaller than the sum of its proper divisors (10121383806).

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

8620561794 is a wasteful number, since it uses less digits than its factorization.

8620561794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2635.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 8620561794 is about 92846.9805324869. The cubic root of 8620561794 is about 2050.4311442177.

The spelling of 8620561794 in words is "eight billion, six hundred twenty million, five hundred sixty-one thousand, seven hundred ninety-four".