648458687193 has 8 divisors (see below), whose sum is σ = 870922616928. Its totient is φ = 429150274464.

The previous prime is 648458687183. The next prime is 648458687221. The reversal of 648458687193 is 391786854846.

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

It is not a de Polignac number, because 648458687193 - 2¹⁷ = 648458556121 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (648458687183) 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, 788878771 + ... + 788879592.

It is an arithmetic number, because the mean of its divisors is an integer number (108865327116).

Almost surely, 2^648458687193 is an apocalyptic number.

It is an amenable number.

648458687193 is a deficient number, since it is larger than the sum of its proper divisors (222463929735).

648458687193 is a wasteful number, since it uses less digits than its factorization.

648458687193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577758503.

The product of its digits is 278691840, while the sum is 69.

The spelling of 648458687193 in words is "six hundred forty-eight billion, four hundred fifty-eight million, six hundred eighty-seven thousand, one hundred ninety-three".