648202215387 has 32 divisors (see below), whose sum is σ = 927459072000. Its totient is φ = 401434106112.

The previous prime is 648202215337. The next prime is 648202215389. The reversal of 648202215387 is 783512202846.

It is not a de Polignac number, because 648202215387 - 2¹⁹ = 648201691099 is a prime.

It is a super-2 number, since 2×648202215387² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (648202215389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5234614 + ... + 5357012.

It is an arithmetic number, because the mean of its divisors is an integer number (28983096000).

Almost surely, 2^648202215387 is an apocalyptic number.

648202215387 is a deficient number, since it is larger than the sum of its proper divisors (279256856613).

648202215387 is a wasteful number, since it uses less digits than its factorization.

648202215387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124227.

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 648202215387 in words is "six hundred forty-eight billion, two hundred two million, two hundred fifteen thousand, three hundred eighty-seven".