785039489500 has 384 divisors, whose sum is σ = 2199720886272. Its totient is φ = 238505472000.

The previous prime is 785039489497. The next prime is 785039489501. The reversal of 785039489500 is 5984930587.

It is a super-2 number, since 2×785039489500² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (785039489501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 68240749 + ... + 68252251.

It is an arithmetic number, because the mean of its divisors is an integer number (5728439808).

Almost surely, 2^785039489500 is an apocalyptic number.

785039489500 is a gapful number since it is divisible by the number (70) 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 785039489500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1099860443136).

785039489500 is an abundant number, since it is smaller than the sum of its proper divisors (1414681396772).

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

785039489500 is a wasteful number, since it uses less digits than its factorization.

785039489500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11614 (or 11602 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 58.

The spelling of 785039489500 in words is "seven hundred eighty-five billion, thirty-nine million, four hundred eighty-nine thousand, five hundred".