861244369310 has 16 divisors (see below), whose sum is σ = 1669489085376. Its totient is φ = 317997920928.

The previous prime is 861244369309. The next prime is 861244369319. The reversal of 861244369310 is 13963442168.

It is a super-2 number, since 2×861244369310² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861244369319) 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 7 ways as a sum of consecutive naturals, for example, 3312478214 + ... + 3312478473.

It is an arithmetic number, because the mean of its divisors is an integer number (104343067836).

Almost surely, 2^861244369310 is an apocalyptic number.

861244369310 is a deficient number, since it is larger than the sum of its proper divisors (808244716066).

861244369310 is a wasteful number, since it uses less digits than its factorization.

861244369310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6624956707.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 861244369310 in words is "eight hundred sixty-one billion, two hundred forty-four million, three hundred sixty-nine thousand, three hundred ten".