860078255400 has 768 divisors, whose sum is σ = 3838087680000. Its totient is φ = 171914296320.

The previous prime is 860078255371. The next prime is 860078255417. The reversal of 860078255400 is 4552870068.

860078255400 is a `hidden beast` number, since 86 + 0 + 0 + 7 + 8 + 25 + 540 + 0 = 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 191 ways as a sum of consecutive naturals, for example, 9290541 + ... + 9382659.

It is an arithmetic number, because the mean of its divisors is an integer number (4997510000).

Almost surely, 2^860078255400 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 860078255400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1919043840000).

860078255400 is an abundant number, since it is smaller than the sum of its proper divisors (2978009424600).

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

860078255400 is a wasteful number, since it uses less digits than its factorization.

860078255400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92183 (or 92168 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 860078255400 in words is "eight hundred sixty billion, seventy-eight million, two hundred fifty-five thousand, four hundred".