862136064 has 108 divisors (see below), whose sum is σ = 2494791936. Its totient is φ = 286334976.

The previous prime is 862136057. The next prime is 862136089. The reversal of 862136064 is 460631268.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 881944 + ... + 882920.

Almost surely, 2^862136064 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 862136064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1247395968).

862136064 is an abundant number, since it is smaller than the sum of its proper divisors (1632655872).

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

862136064 is a wasteful number, since it uses less digits than its factorization.

862136064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382 (or 1365 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 862136064 is about 29362.1535994893. The cubic root of 862136064 is about 951.7552274224.

The spelling of 862136064 in words is "eight hundred sixty-two million, one hundred thirty-six thousand, sixty-four".