868371023520 has 2880 divisors, whose sum is σ = 4371177000960. Its totient is φ = 157212057600.

The previous prime is 868371023479. The next prime is 868371023543. The reversal of 868371023520 is 25320173868.

868371023520 is a `hidden beast` number, since 8 + 68 + 37 + 10 + 23 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 3204320985 + ... + 3204321255.

It is an arithmetic number, because the mean of its divisors is an integer number (1517769792).

Almost surely, 2^868371023520 is an apocalyptic number.

868371023520 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 868371023520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2185588500480).

868371023520 is an abundant number, since it is smaller than the sum of its proper divisors (3502805977440).

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

868371023520 is a wasteful number, since it uses less digits than its factorization.

868371023520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 868371023520 in words is "eight hundred sixty-eight billion, three hundred seventy-one million, twenty-three thousand, five hundred twenty".