650878354560 has 1024 divisors, whose sum is σ = 2537694720000. Its totient is φ = 138788536320.

The previous prime is 650878354547. The next prime is 650878354573. The reversal of 650878354560 is 65453878056.

It is an interprime number because it is at equal distance from previous prime (650878354547) and next prime (650878354573).

It is a self number, because there is not a number n which added to its sum of digits gives 650878354560.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1304365191 + ... + 1304365689.

It is an arithmetic number, because the mean of its divisors is an integer number (2478217500).

Almost surely, 2^650878354560 is an apocalyptic number.

650878354560 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 650878354560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1268847360000).

650878354560 is an abundant number, since it is smaller than the sum of its proper divisors (1886816365440).

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

650878354560 is a wasteful number, since it uses less digits than its factorization.

650878354560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 24192000, while the sum is 57.

The spelling of 650878354560 in words is "six hundred fifty billion, eight hundred seventy-eight million, three hundred fifty-four thousand, five hundred sixty".