783724121140 has 12 divisors (see below), whose sum is σ = 1645820654436. Its totient is φ = 313489648448.

The previous prime is 783724121137. The next prime is 783724121161. The reversal of 783724121140 is 41121427387.

It can be written as a sum of positive squares in 2 ways, for example, as 301124367504 + 482599753636 = 548748^2 + 694694^2 .

It is a super-2 number, since 2×783724121140² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 783724121093 and 783724121102.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 19593103009 + ... + 19593103048.

It is an arithmetic number, because the mean of its divisors is an integer number (137151721203).

Almost surely, 2^783724121140 is an apocalyptic number.

It is an amenable number.

783724121140 is an abundant number, since it is smaller than the sum of its proper divisors (862096533296).

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

783724121140 is a wasteful number, since it uses less digits than its factorization.

783724121140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39186206066 (or 39186206064 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 783724121140 in words is "seven hundred eighty-three billion, seven hundred twenty-four million, one hundred twenty-one thousand, one hundred forty".