781549196096 has 56 divisors (see below), whose sum is σ = 1578048233280. Its totient is φ = 383938099200.

The previous prime is 781549196063. The next prime is 781549196107. The reversal of 781549196096 is 690691945187.

It is a super-2 number, since 2×781549196096² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6857336 + ... + 6970376.

Almost surely, 2^781549196096 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 781549196096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (789024116640).

781549196096 is an abundant number, since it is smaller than the sum of its proper divisors (796499037184).

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

781549196096 is a wasteful number, since it uses less digits than its factorization.

781549196096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114943 (or 114933 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 65.

The spelling of 781549196096 in words is "seven hundred eighty-one billion, five hundred forty-nine million, one hundred ninety-six thousand, ninety-six".