783223221032440 has 16 divisors (see below), whose sum is σ = 1762252247323080. Its totient is φ = 313289288412960.

The previous prime is 783223221032431. The next prime is 783223221032491. The reversal of 783223221032440 is 44230122322387.

It is a happy number.

It is a super-2 number, since 2×783223221032440² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9790290262866 + ... + 9790290262945.

Almost surely, 2^{783223221032440} is an apocalyptic number.

It is an amenable number.

783223221032440 is an abundant number, since it is smaller than the sum of its proper divisors (979029026290640).

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

783223221032440 is a wasteful number, since it uses less digits than its factorization.

783223221032440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19580580525822 (or 19580580525818 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 43.

The spelling of 783223221032440 in words is "seven hundred eighty-three trillion, two hundred twenty-three billion, two hundred twenty-one million, thirty-two thousand, four hundred forty".