97628421030 has 128 divisors (see below), whose sum is σ = 271657967616. Its totient is φ = 21993984000.

The previous prime is 97628420971. The next prime is 97628421047. The reversal of 97628421030 is 3012482679.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4719510 + ... + 4740150.

It is an arithmetic number, because the mean of its divisors is an integer number (2122327872).

Almost surely, 2^97628421030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97628421030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135828983808).

97628421030 is an abundant number, since it is smaller than the sum of its proper divisors (174029546586).

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

97628421030 is a wasteful number, since it uses less digits than its factorization.

97628421030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20982.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 97628421030 in words is "ninety-seven billion, six hundred twenty-eight million, four hundred twenty-one thousand, thirty".