648925302480 has 480 divisors, whose sum is σ = 2538589019904. Its totient is φ = 135912333312.

The previous prime is 648925302479. The next prime is 648925302517. The reversal of 648925302480 is 84203529846.

It is a happy number.

It is a Cunningham number, because it is equal to 805559²-1.

It is a super-2 number, since 2×648925302480² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20929069 + ... + 20960051.

Almost surely, 2^648925302480 is an apocalyptic number.

648925302480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648925302480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269294509952).

648925302480 is an abundant number, since it is smaller than the sum of its proper divisors (1889663717424).

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

648925302480 is a wasteful number, since it uses less digits than its factorization.

648925302480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31163 (or 31150 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 648925302480 in words is "six hundred forty-eight billion, nine hundred twenty-five million, three hundred two thousand, four hundred eighty".