648449292959 has 8 divisors (see below), whose sum is σ = 698353856592. Its totient is φ = 598548136320.

The previous prime is 648449292941. The next prime is 648449292961. The reversal of 648449292959 is 959292944846.

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 648449292959 - 2¹² = 648449288863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 648449292892 and 648449292901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648449292559) 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, 449402 + ... + 1224279.

It is an arithmetic number, because the mean of its divisors is an integer number (87294232074).

Almost surely, 2^648449292959 is an apocalyptic number.

648449292959 is a deficient number, since it is larger than the sum of its proper divisors (49904563633).

648449292959 is a wasteful number, since it uses less digits than its factorization.

648449292959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703497.

The product of its digits is 403107840, while the sum is 71.

The spelling of 648449292959 in words is "six hundred forty-eight billion, four hundred forty-nine million, two hundred ninety-two thousand, nine hundred fifty-nine".