651026291312 has 80 divisors (see below), whose sum is σ = 1362749445120. Its totient is φ = 300281126400.

The previous prime is 651026291249. The next prime is 651026291329. The reversal of 651026291312 is 213192620156.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6468737 + ... + 6568607.

It is an arithmetic number, because the mean of its divisors is an integer number (17034368064).

Almost surely, 2^651026291312 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 651026291312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681374722560).

651026291312 is an abundant number, since it is smaller than the sum of its proper divisors (711723153808).

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

651026291312 is a wasteful number, since it uses less digits than its factorization.

651026291312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100462 (or 100456 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 651026291312 in words is "six hundred fifty-one billion, twenty-six million, two hundred ninety-one thousand, three hundred twelve".