648917010733 has 4 divisors (see below), whose sum is σ = 648918921888. Its totient is φ = 648915099580.

The previous prime is 648917010713. The next prime is 648917010737. The reversal of 648917010733 is 337010719846.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-648917010733 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 (648917010737) 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, 293233 + ... + 1176358.

It is an arithmetic number, because the mean of its divisors is an integer number (162229730472).

Almost surely, 2^648917010733 is an apocalyptic number.

It is an amenable number.

648917010733 is a deficient number, since it is larger than the sum of its proper divisors (1911155).

648917010733 is a wasteful number, since it uses less digits than its factorization.

648917010733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911154.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 648917010733 in words is "six hundred forty-eight billion, nine hundred seventeen million, ten thousand, seven hundred thirty-three".