648252452436 has 24 divisors (see below), whose sum is σ = 1512611437344. Its totient is φ = 216080953440.

The previous prime is 648252452369. The next prime is 648252452443. The reversal of 648252452436 is 634254252846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531966 + ... + 1256778.

It is an arithmetic number, because the mean of its divisors is an integer number (63025476556).

Almost surely, 2^648252452436 is an apocalyptic number.

It is an amenable number.

648252452436 is an abundant number, since it is smaller than the sum of its proper divisors (864358984908).

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

648252452436 is a wasteful number, since it uses less digits than its factorization.

648252452436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799351 (or 799349 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 51.

The spelling of 648252452436 in words is "six hundred forty-eight billion, two hundred fifty-two million, four hundred fifty-two thousand, four hundred thirty-six".