648498215077 has 8 divisors (see below), whose sum is σ = 663697078880. Its totient is φ = 633304692720.

The previous prime is 648498215051. The next prime is 648498215143. The reversal of 648498215077 is 770512894846.

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 648498215077 - 2¹¹ = 648498213029 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 (648498215047) 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, 1089174 + ... + 1575847.

It is an arithmetic number, because the mean of its divisors is an integer number (82962134860).

Almost surely, 2^648498215077 is an apocalyptic number.

It is an amenable number.

648498215077 is a deficient number, since it is larger than the sum of its proper divisors (15198863803).

648498215077 is a wasteful number, since it uses less digits than its factorization.

648498215077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670723.

The product of its (nonzero) digits is 27095040, while the sum is 61.

The spelling of 648498215077 in words is "six hundred forty-eight billion, four hundred ninety-eight million, two hundred fifteen thousand, seventy-seven".