1013520541648 has 20 divisors (see below), whose sum is σ = 1983138587748. Its totient is φ = 501742841600.

The previous prime is 1013520541591. The next prime is 1013520541687. The reversal of 1013520541648 is 8461450253101.

It can be written as a sum of positive squares in 2 ways, for example, as 998384652864 + 15135888784 = 999192^2 + 123028^2 .

It is a super-3 number, since 3×1013520541648³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1013520541648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313587661 + ... + 313590892.

Almost surely, 2^{1013520541648} is an apocalyptic number.

It is an amenable number.

1013520541648 is a deficient number, since it is larger than the sum of its proper divisors (969618046100).

1013520541648 is a wasteful number, since it uses less digits than its factorization.

1013520541648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627178662 (or 627178656 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

Adding to 1013520541648 its reverse (8461450253101), we get a palindrome (9474970794749).

The spelling of 1013520541648 in words is "one trillion, thirteen billion, five hundred twenty million, five hundred forty-one thousand, six hundred forty-eight".