4351321628 has 6 divisors (see below), whose sum is σ = 7614812856. Its totient is φ = 2175660812.

The previous prime is 4351321627. The next prime is 4351321643. The reversal of 4351321628 is 8261231534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4351321627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543915200 + ... + 543915207.

It is an arithmetic number, because the mean of its divisors is an integer number (1269135476).

Almost surely, 2^4351321628 is an apocalyptic number.

It is an amenable number.

4351321628 is a deficient number, since it is larger than the sum of its proper divisors (3263491228).

4351321628 is a wasteful number, since it uses less digits than its factorization.

4351321628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087830411 (or 1087830409 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 4351321628 is about 65964.5482664742. The cubic root of 4351321628 is about 1632.5772054601.

The spelling of 4351321628 in words is "four billion, three hundred fifty-one million, three hundred twenty-one thousand, six hundred twenty-eight".