862660639360 has 384 divisors, whose sum is σ = 2395178916480. Its totient is φ = 294781132800.

The previous prime is 862660639331. The next prime is 862660639369. The reversal of 862660639360 is 63936066268.

It is not an unprimeable number, because it can be changed into a prime (862660639369) 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 47 ways as a sum of consecutive naturals, for example, 183894615 + ... + 183899305.

It is an arithmetic number, because the mean of its divisors is an integer number (6237445095).

Almost surely, 2^862660639360 is an apocalyptic number.

862660639360 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 862660639360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197589458240).

862660639360 is an abundant number, since it is smaller than the sum of its proper divisors (1532518277120).

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

862660639360 is a wasteful number, since it uses less digits than its factorization.

862660639360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4808 (or 4765 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 55.

The spelling of 862660639360 in words is "eight hundred sixty-two billion, six hundred sixty million, six hundred thirty-nine thousand, three hundred sixty".