780334266450 has 96 divisors (see below), whose sum is σ = 2037544142400. Its totient is φ = 197092465920.

The previous prime is 780334266367. The next prime is 780334266457. The reversal of 780334266450 is 54662433087.

It is a self number, because there is not a number n which added to its sum of digits gives 780334266450.

It is not an unprimeable number, because it can be changed into a prime (780334266457) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 13620064 + ... + 13677236.

It is an arithmetic number, because the mean of its divisors is an integer number (21224418150).

Almost surely, 2^780334266450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 780334266450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1018772071200).

780334266450 is an abundant number, since it is smaller than the sum of its proper divisors (1257209875950).

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

780334266450 is a wasteful number, since it uses less digits than its factorization.

780334266450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61996 (or 61991 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 780334266450 in words is "seven hundred eighty billion, three hundred thirty-four million, two hundred sixty-six thousand, four hundred fifty".