648749117959 has 8 divisors (see below), whose sum is σ = 653265820400. Its totient is φ = 644237283456.

The previous prime is 648749117941. The next prime is 648749117963. The reversal of 648749117959 is 959711947846.

648749117959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 648749117959 - 2⁷ = 648749117831 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 (648749117969) 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, 949314 + ... + 1482799.

It is an arithmetic number, because the mean of its divisors is an integer number (81658227550).

Almost surely, 2^648749117959 is an apocalyptic number.

648749117959 is a deficient number, since it is larger than the sum of its proper divisors (4516702441).

648749117959 is a wasteful number, since it uses less digits than its factorization.

648749117959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433969.

The product of its digits is 137168640, while the sum is 70.

The spelling of 648749117959 in words is "six hundred forty-eight billion, seven hundred forty-nine million, one hundred seventeen thousand, nine hundred fifty-nine".