648155047522 has 8 divisors (see below), whose sum is σ = 992918370816. Its totient is φ = 317182257252.

The previous prime is 648155047513. The next prime is 648155047523. The reversal of 648155047522 is 225740551846.

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

It is not an unprimeable number, because it can be changed into a prime (648155047523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3447633138 + ... + 3447633325.

It is an arithmetic number, because the mean of its divisors is an integer number (124114796352).

Almost surely, 2^648155047522 is an apocalyptic number.

648155047522 is a deficient number, since it is larger than the sum of its proper divisors (344763323294).

648155047522 is a wasteful number, since it uses less digits than its factorization.

648155047522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6895266512.

The product of its (nonzero) digits is 2688000, while the sum is 49.

The spelling of 648155047522 in words is "six hundred forty-eight billion, one hundred fifty-five million, forty-seven thousand, five hundred twenty-two".