648627317400 has 48 divisors (see below), whose sum is σ = 2010744685800. Its totient is φ = 172967284480.

The previous prime is 648627317389. The next prime is 648627317419. The reversal of 648627317400 is 4713726846.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 648627317400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 540522165 + ... + 540523364.

Almost surely, 2^648627317400 is an apocalyptic number.

648627317400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

648627317400 is an abundant number, since it is smaller than the sum of its proper divisors (1362117368400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648627317400 is a wasteful number, since it uses less digits than its factorization.

648627317400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081045548 (or 1081045539 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 648627317400 in words is "six hundred forty-eight billion, six hundred twenty-seven million, three hundred seventeen thousand, four hundred".