803910780840 has 64 divisors (see below), whose sum is σ = 2422547366400. Its totient is φ = 213414872832.

The previous prime is 803910780839. The next prime is 803910780847. The reversal of 803910780840 is 48087019308.

It is a super-2 number, since 2×803910780840² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 803910780840.

It is not an unprimeable number, because it can be changed into a prime (803910780847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14993995 + ... + 15047514.

It is an arithmetic number, because the mean of its divisors is an integer number (37852302600).

Almost surely, 2^803910780840 is an apocalyptic number.

It is an amenable number.

803910780840 is an abundant number, since it is smaller than the sum of its proper divisors (1618636585560).

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

803910780840 is a wasteful number, since it uses less digits than its factorization.

803910780840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30041746 (or 30041742 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 803910780840 in words is "eight hundred three billion, nine hundred ten million, seven hundred eighty thousand, eight hundred forty".