648445092753 has 4 divisors (see below), whose sum is σ = 864593457008. Its totient is φ = 432296728500.

The previous prime is 648445092751. The next prime is 648445092781. The reversal of 648445092753 is 357290544846.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 648445092753 - 2¹ = 648445092751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 648445092693 and 648445092702.

It is not an unprimeable number, because it can be changed into a prime (648445092751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108074182123 + ... + 108074182128.

It is an arithmetic number, because the mean of its divisors is an integer number (216148364252).

Almost surely, 2^648445092753 is an apocalyptic number.

It is an amenable number.

648445092753 is a deficient number, since it is larger than the sum of its proper divisors (216148364255).

648445092753 is a wasteful number, since it uses less digits than its factorization.

648445092753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216148364254.

The product of its (nonzero) digits is 29030400, while the sum is 57.

The spelling of 648445092753 in words is "six hundred forty-eight billion, four hundred forty-five million, ninety-two thousand, seven hundred fifty-three".