2147948185744 has 15 divisors (see below), whose sum is σ = 4161660968217. Its totient is φ = 1073971161696.

The previous prime is 2147948185717. The next prime is 2147948185783. The reversal of 2147948185744 is 4475818497412.

The square root of 2147948185744 is 1465588.

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., 214424563600 + 1933523622144 = 463060^2 + 1390512^2 .

It is a super-2 number, since 2×2147948185744² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 5679154 + ... + 6045550.

Almost surely, 2^{2147948185744} is an apocalyptic number.

2147948185744 is the 1465588-th square number.

It is an amenable number.

2147948185744 is a deficient number, since it is larger than the sum of its proper divisors (2013712782473).

2147948185744 is an frugal number, since it uses more digits than its factorization.

2147948185744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732802 (or 366399 counting only the distinct ones).

The product of its digits is 72253440, while the sum is 64.

Multiplying 2147948185744 by its sum of digits (64), we get a square (137468683887616 = 11724704²).

The spelling of 2147948185744 in words is "two trillion, one hundred forty-seven billion, nine hundred forty-eight million, one hundred eighty-five thousand, seven hundred forty-four".