648498215078 has 8 divisors (see below), whose sum is σ = 1111711225872. Its totient is φ = 277927806456.

The previous prime is 648498215051. The next prime is 648498215143. The reversal of 648498215078 is 870512894846.

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

It is a self number, because there is not a number n which added to its sum of digits gives 648498215078.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23160650525 + ... + 23160650552.

It is an arithmetic number, because the mean of its divisors is an integer number (138963903234).

Almost surely, 2^648498215078 is an apocalyptic number.

648498215078 is a deficient number, since it is larger than the sum of its proper divisors (463213010794).

648498215078 is a wasteful number, since it uses less digits than its factorization.

648498215078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46321301086.

The product of its (nonzero) digits is 30965760, while the sum is 62.

The spelling of 648498215078 in words is "six hundred forty-eight billion, four hundred ninety-eight million, two hundred fifteen thousand, seventy-eight".