780027860502840 has 32 divisors (see below), whose sum is σ = 2340083581508880. Its totient is φ = 208007429467392.

The previous prime is 780027860502749. The next prime is 780027860502871. The reversal of 780027860502840 is 48205068720087.

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, 3250116085309 + ... + 3250116085548.

Almost surely, 2^{780027860502840} is an apocalyptic number.

It is an amenable number.

780027860502840 is an abundant number, since it is smaller than the sum of its proper divisors (1560055721006040).

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

780027860502840 is a wasteful number, since it uses less digits than its factorization.

780027860502840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500232170871 (or 6500232170867 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 57.

The spelling of 780027860502840 in words is "seven hundred eighty trillion, twenty-seven billion, eight hundred sixty million, five hundred two thousand, eight hundred forty".