863949701340 has 144 divisors (see below), whose sum is σ = 2859875587296. Its totient is φ = 209370009600.

The previous prime is 863949701297. The next prime is 863949701369. The reversal of 863949701340 is 43107949368.

It is a happy number.

863949701340 is a `hidden beast` number, since 86 + 39 + 497 + 0 + 1 + 3 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5773060 + ... + 5920820.

It is an arithmetic number, because the mean of its divisors is an integer number (19860247134).

Almost surely, 2^863949701340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863949701340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1429937793648).

863949701340 is an abundant number, since it is smaller than the sum of its proper divisors (1995925885956).

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

863949701340 is a wasteful number, since it uses less digits than its factorization.

863949701340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150740 (or 150735 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 863949701340 in words is "eight hundred sixty-three billion, nine hundred forty-nine million, seven hundred one thousand, three hundred forty".