65438364628 has 192 divisors, whose sum is σ = 151226449920. Its totient is φ = 24073459200.

The previous prime is 65438364611. The next prime is 65438364637. The reversal of 65438364628 is 82646383456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 101770075 + ... + 101770717.

It is an arithmetic number, because the mean of its divisors is an integer number (787637760).

Almost surely, 2^65438364628 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 65438364628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75613224960).

65438364628 is an abundant number, since it is smaller than the sum of its proper divisors (85788085292).

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

65438364628 is a wasteful number, since it uses less digits than its factorization.

65438364628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1036 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 55.

The spelling of 65438364628 in words is "sixty-five billion, four hundred thirty-eight million, three hundred sixty-four thousand, six hundred twenty-eight".