651790706688 has 480 divisors, whose sum is σ = 2130977328480. Its totient is φ = 196849336320.

The previous prime is 651790706687. The next prime is 651790706711. The reversal of 651790706688 is 886607097156.

It is a super-2 number, since 2×651790706688² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (651790706681) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 998147770 + ... + 998148422.

It is an arithmetic number, because the mean of its divisors is an integer number (4439536101).

Almost surely, 2^651790706688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651790706688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1065488664240).

651790706688 is an abundant number, since it is smaller than the sum of its proper divisors (1479186621792).

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

651790706688 is a wasteful number, since it uses less digits than its factorization.

651790706688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1216 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 63.

The spelling of 651790706688 in words is "six hundred fifty-one billion, seven hundred ninety million, seven hundred six thousand, six hundred eighty-eight".