648705351 has 16 divisors (see below), whose sum is σ = 990328064. Its totient is φ = 370004544.

The previous prime is 648705331. The next prime is 648705361. The reversal of 648705351 is 153507846.

It is not a de Polignac number, because 648705351 - 2⁹ = 648704839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648705301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16750 + ... + 39723.

It is an arithmetic number, because the mean of its divisors is an integer number (61895504).

Almost surely, 2^648705351 is an apocalyptic number.

648705351 is a deficient number, since it is larger than the sum of its proper divisors (341622713).

648705351 is a wasteful number, since it uses less digits than its factorization.

648705351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57030.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 648705351 is about 25469.6947567104. The cubic root of 648705351 is about 865.6636073976.

The spelling of 648705351 in words is "six hundred forty-eight million, seven hundred five thousand, three hundred fifty-one".