648397927054 has 16 divisors (see below), whose sum is σ = 988887640176. Its totient is φ = 318772440000.

The previous prime is 648397927031. The next prime is 648397927127. The reversal of 648397927054 is 450729793846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581572 + ... + 1278679.

It is an arithmetic number, because the mean of its divisors is an integer number (61805477511).

Almost surely, 2^648397927054 is an apocalyptic number.

648397927054 is a deficient number, since it is larger than the sum of its proper divisors (340489713122).

648397927054 is a wasteful number, since it uses less digits than its factorization.

648397927054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863171.

The product of its (nonzero) digits is 91445760, while the sum is 64.

The spelling of 648397927054 in words is "six hundred forty-eight billion, three hundred ninety-seven million, nine hundred twenty-seven thousand, fifty-four".