75867500856 has 144 divisors (see below), whose sum is σ = 234378106200. Its totient is φ = 20401253376.

The previous prime is 75867500843. The next prime is 75867500861. The reversal of 75867500856 is 65800576857.

It is a super-2 number, since 2×75867500856² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75867500796 and 75867500805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 228250 + ... + 451478.

Almost surely, 2^75867500856 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 75867500856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117189053100).

75867500856 is an abundant number, since it is smaller than the sum of its proper divisors (158510605344).

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

75867500856 is a wasteful number, since it uses less digits than its factorization.

75867500856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223286 (or 223258 counting only the distinct ones).

The product of its (nonzero) digits is 14112000, while the sum is 57.

The spelling of 75867500856 in words is "seventy-five billion, eight hundred sixty-seven million, five hundred thousand, eight hundred fifty-six".