862799700840 has 288 divisors, whose sum is σ = 3309608665440. Its totient is φ = 179282906880.

The previous prime is 862799700827. The next prime is 862799700857. The reversal of 862799700840 is 48007997268.

862799700840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 105139 + ... + 1317821.

It is an arithmetic number, because the mean of its divisors is an integer number (11491696755).

Almost surely, 2^862799700840 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 862799700840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1654804332720).

862799700840 is an abundant number, since it is smaller than the sum of its proper divisors (2446808964600).

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

862799700840 is a wasteful number, since it uses less digits than its factorization.

862799700840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212733 (or 1212711 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 862799700840 in words is "eight hundred sixty-two billion, seven hundred ninety-nine million, seven hundred thousand, eight hundred forty".