65434628628 has 48 divisors (see below), whose sum is σ = 170373490560. Its totient is φ = 21717922752.

The previous prime is 65434628621. The next prime is 65434628641. The reversal of 65434628628 is 82682643456.

It is a happy number.

65434628628 is a `hidden beast` number, since 6 + 5 + 4 + 3 + 4 + 6 + 2 + 8 + 628 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65434628621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1275000 + ... + 1325327.

It is an arithmetic number, because the mean of its divisors is an integer number (3549447720).

Almost surely, 2^65434628628 is an apocalyptic number.

It is an amenable number.

65434628628 is an abundant number, since it is smaller than the sum of its proper divisors (104938861932).

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

65434628628 is a wasteful number, since it uses less digits than its factorization.

65434628628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600573 (or 2600565 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 54.

The spelling of 65434628628 in words is "sixty-five billion, four hundred thirty-four million, six hundred twenty-eight thousand, six hundred twenty-eight".