1748355640516 has 27 divisors (see below), whose sum is σ = 3079965948717. Its totient is φ = 868403537040.

The previous prime is 1748355640481. The next prime is 1748355640517. The reversal of 1748355640516 is 6150465538471.

The square root of 1748355640516 is 1322254.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 512469856900 + 1235885783616 = 715870^2 + 1111704^2 .

It is a super-2 number, since 2×1748355640516² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1748355640517) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 415185651 + ... + 415189861.

Almost surely, 2^{1748355640516} is an apocalyptic number.

1748355640516 is the 1322254-th square number.

It is an amenable number.

1748355640516 is a deficient number, since it is larger than the sum of its proper divisors (1331610308201).

1748355640516 is an frugal number, since it uses more digits than its factorization.

1748355640516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8740 (or 4370 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 55.

The spelling of 1748355640516 in words is "one trillion, seven hundred forty-eight billion, three hundred fifty-five million, six hundred forty thousand, five hundred sixteen".