783640676256 has 48 divisors (see below), whose sum is σ = 2178060119424. Its totient is φ = 245848054784.

The previous prime is 783640676237. The next prime is 783640676257. The reversal of 783640676256 is 652676046387.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×783640676256² (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 783640676256.

It is not an unprimeable number, because it can be changed into a prime (783640676257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240084360 + ... + 240087623.

It is an arithmetic number, because the mean of its divisors is an integer number (45376252488).

Almost surely, 2^783640676256 is an apocalyptic number.

It is an amenable number.

783640676256 is an abundant number, since it is smaller than the sum of its proper divisors (1394419443168).

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

783640676256 is a wasteful number, since it uses less digits than its factorization.

783640676256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480172013 (or 480172005 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 60.

The spelling of 783640676256 in words is "seven hundred eighty-three billion, six hundred forty million, six hundred seventy-six thousand, two hundred fifty-six".