1383537439952 has 10 divisors (see below), whose sum is σ = 2680603789938. Its totient is φ = 691768719968.

The previous prime is 1383537439937. The next prime is 1383537439957. The reversal of 1383537439952 is 2599347353831.

It can be written as a sum of positive squares in only one way, i.e., 1284423288976 + 99114150976 = 1133324^2 + 314824^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383537439957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43235544983 + ... + 43235545014.

Almost surely, 2^{1383537439952} is an apocalyptic number.

It is an amenable number.

1383537439952 is a deficient number, since it is larger than the sum of its proper divisors (1297066349986).

1383537439952 is an equidigital number, since it uses as much as digits as its factorization.

1383537439952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86471090005 (or 86471089999 counting only the distinct ones).

The product of its digits is 73483200, while the sum is 62.

The spelling of 1383537439952 in words is "one trillion, three hundred eighty-three billion, five hundred thirty-seven million, four hundred thirty-nine thousand, nine hundred fifty-two".