650748954240 has 1024 divisors, whose sum is σ = 3024787968000. Its totient is φ = 128098713600.

The previous prime is 650748954217. The next prime is 650748954241. The reversal of 650748954240 is 42459847056.

650748954240 is a `hidden beast` number, since 6 + 50 + 7 + 4 + 8 + 9 + 542 + 40 = 666.

It is a super-2 number, since 2×650748954240² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (650748954241) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 25267770 + ... + 25293510.

It is an arithmetic number, because the mean of its divisors is an integer number (2953894500).

Almost surely, 2^650748954240 is an apocalyptic number.

650748954240 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 650748954240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512393984000).

650748954240 is an abundant number, since it is smaller than the sum of its proper divisors (2374039013760).

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

650748954240 is a wasteful number, since it uses less digits than its factorization.

650748954240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25806 (or 25788 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 650748954240 in words is "six hundred fifty billion, seven hundred forty-eight million, nine hundred fifty-four thousand, two hundred forty".