861611352 has 32 divisors (see below), whose sum is σ = 2461747200. Its totient is φ = 246174624.

The previous prime is 861611347. The next prime is 861611353. The reversal of 861611352 is 253116168.

861611352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861611353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2564152 + ... + 2564487.

It is an arithmetic number, because the mean of its divisors is an integer number (76929600).

Almost surely, 2^861611352 is an apocalyptic number.

It is an amenable number.

861611352 is an abundant number, since it is smaller than the sum of its proper divisors (1600135848).

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

861611352 is a wasteful number, since it uses less digits than its factorization.

861611352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5128655 (or 5128651 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 861611352 is about 29353.2170638927. The cubic root of 861611352 is about 951.5621029423.

The spelling of 861611352 in words is "eight hundred sixty-one million, six hundred eleven thousand, three hundred fifty-two".