1375521644050 has 48 divisors (see below), whose sum is σ = 2629264999752. Its totient is φ = 535002624000.

The previous prime is 1375521644039. The next prime is 1375521644059. The reversal of 1375521644050 is 504461255731.

It can be written as a sum of positive squares in 12 ways, for example, as 1118773713841 + 256747930209 = 1057721^2 + 506703^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1375521643988 and 1375521644006.

It is not an unprimeable number, because it can be changed into a prime (1375521644059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2729644 + ... + 3194056.

Almost surely, 2^{1375521644050} is an apocalyptic number.

1375521644050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1375521644050 is a deficient number, since it is larger than the sum of its proper divisors (1253743355702).

1375521644050 is a wasteful number, since it uses less digits than its factorization.

1375521644050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466063 (or 466058 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

Adding to 1375521644050 its reverse (504461255731), we get a palindrome (1879982899781).

The spelling of 1375521644050 in words is "one trillion, three hundred seventy-five billion, five hundred twenty-one million, six hundred forty-four thousand, fifty".