675438076928 has 66 divisors (see below), whose sum is σ = 1429870599666. Its totient is φ = 317802184704.

The previous prime is 675438076913. The next prime is 675438077029. The reversal of 675438076928 is 829670834576.

It can be written as a sum of positive squares in 3 ways, for example, as 182117269504 + 493320807424 = 426752^2 + 702368^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108431318 + ... + 108437546.

Almost surely, 2^675438076928 is an apocalyptic number.

675438076928 is a gapful number since it is divisible by the number (68) 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 675438076928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714935299833).

675438076928 is an abundant number, since it is smaller than the sum of its proper divisors (754432522738).

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

675438076928 is an frugal number, since it uses more digits than its factorization.

675438076928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12495 (or 6248 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 65.

The spelling of 675438076928 in words is "six hundred seventy-five billion, four hundred thirty-eight million, seventy-six thousand, nine hundred twenty-eight".