781038006112 has 48 divisors (see below), whose sum is σ = 1892515175712. Its totient is φ = 308982067200.

The previous prime is 781038005981. The next prime is 781038006169. The reversal of 781038006112 is 211600830187.

It is a super-2 number, since 2×781038006112² (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, 134103889 + ... + 134109712.

It is an arithmetic number, because the mean of its divisors is an integer number (39427399494).

Almost surely, 2^781038006112 is an apocalyptic number.

It is an amenable number.

781038006112 is an abundant number, since it is smaller than the sum of its proper divisors (1111477169600).

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

781038006112 is a wasteful number, since it uses less digits than its factorization.

781038006112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268213631 (or 268213623 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

Adding to 781038006112 its reverse (211600830187), we get a palindrome (992638836299).

The spelling of 781038006112 in words is "seven hundred eighty-one billion, thirty-eight million, six thousand, one hundred twelve".