786550100728 has 96 divisors (see below), whose sum is σ = 1818548269200. Its totient is φ = 316902233088.

The previous prime is 786550100663. The next prime is 786550100729. The reversal of 786550100728 is 827001055687.

It is a super-2 number, since 2×786550100728² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (786550100729) 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 23 ways as a sum of consecutive naturals, for example, 5817478 + ... + 5951146.

Almost surely, 2^786550100728 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 786550100728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (909274134600).

786550100728 is an abundant number, since it is smaller than the sum of its proper divisors (1031998168472).

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

786550100728 is a wasteful number, since it uses less digits than its factorization.

786550100728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134589 (or 134578 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 786550100728 in words is "seven hundred eighty-six billion, five hundred fifty million, one hundred thousand, seven hundred twenty-eight".