1648537741 has 8 divisors (see below), whose sum is σ = 1745045280. Its totient is φ = 1554674352.

The previous prime is 1648537729. The next prime is 1648537769. The reversal of 1648537741 is 1477358461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1648537741 - 2¹⁵ = 1648504973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1648537691 and 1648537700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648537721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 659755 + ... + 662248.

It is an arithmetic number, because the mean of its divisors is an integer number (218130660).

Almost surely, 2^1648537741 is an apocalyptic number.

It is an amenable number.

1648537741 is a deficient number, since it is larger than the sum of its proper divisors (96507539).

1648537741 is a wasteful number, since it uses less digits than its factorization.

1648537741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322075.

The product of its digits is 564480, while the sum is 46.

The square root of 1648537741 is about 40602.1888695671. The cubic root of 1648537741 is about 1181.3165763135.

The spelling of 1648537741 in words is "one billion, six hundred forty-eight million, five hundred thirty-seven thousand, seven hundred forty-one".