648770710072 has 8 divisors (see below), whose sum is σ = 1216445081400. Its totient is φ = 324385355032.

The previous prime is 648770710039. The next prime is 648770710087. The reversal of 648770710072 is 270017077846.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 648770709998 and 648770710025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40548169372 + ... + 40548169387.

It is an arithmetic number, because the mean of its divisors is an integer number (152055635175).

Almost surely, 2^648770710072 is an apocalyptic number.

It is an amenable number.

648770710072 is a deficient number, since it is larger than the sum of its proper divisors (567674371328).

648770710072 is a wasteful number, since it uses less digits than its factorization.

648770710072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81096338765 (or 81096338761 counting only the distinct ones).

The product of its (nonzero) digits is 921984, while the sum is 49.

The spelling of 648770710072 in words is "six hundred forty-eight billion, seven hundred seventy million, seven hundred ten thousand, seventy-two".