628966387026 has 96 divisors (see below), whose sum is σ = 1470322788480. Its totient is φ = 193664390400.

The previous prime is 628966387001. The next prime is 628966387051. The reversal of 628966387026 is 620783669826.

It is an interprime number because it is at equal distance from previous prime (628966387001) and next prime (628966387051).

It is a super-2 number, since 2×628966387026² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26082891 + ... + 26106993.

It is an arithmetic number, because the mean of its divisors is an integer number (15315862380).

Almost surely, 2^628966387026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628966387026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735161394240).

628966387026 is an abundant number, since it is smaller than the sum of its proper divisors (841356401454).

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

628966387026 is a wasteful number, since it uses less digits than its factorization.

628966387026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26032 (or 26029 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 63.

The spelling of 628966387026 in words is "six hundred twenty-eight billion, nine hundred sixty-six million, three hundred eighty-seven thousand, twenty-six".