783828046540 has 72 divisors (see below), whose sum is σ = 2067751387296. Its totient is φ = 244310035200.

The previous prime is 783828046523. The next prime is 783828046543. The reversal of 783828046540 is 45640828387.

It is a super-2 number, since 2×783828046540² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is not an unprimeable number, because it can be changed into a prime (783828046543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23118481 + ... + 23152360.

It is an arithmetic number, because the mean of its divisors is an integer number (28718769268).

Almost surely, 2^783828046540 is an apocalyptic number.

783828046540 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

783828046540 is an abundant number, since it is smaller than the sum of its proper divisors (1283923340756).

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

783828046540 is a wasteful number, since it uses less digits than its factorization.

783828046540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46270879 (or 46270866 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 55.

The spelling of 783828046540 in words is "seven hundred eighty-three billion, eight hundred twenty-eight million, forty-six thousand, five hundred forty".