9825628380 has 48 divisors (see below), whose sum is σ = 29130101280. Its totient is φ = 2466039808.

The previous prime is 9825628367. The next prime is 9825628433. The reversal of 9825628380 is 838265289.

It is a super-2 number, since 2×9825628380² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4815465 + ... + 4817504.

It is an arithmetic number, because the mean of its divisors is an integer number (606877110).

Almost surely, 2^9825628380 is an apocalyptic number.

It is an amenable number.

9825628380 is an abundant number, since it is smaller than the sum of its proper divisors (19304472900).

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

9825628380 is a wasteful number, since it uses less digits than its factorization.

9825628380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9632998 (or 9632996 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 9825628380 is about 99124.3077151109. The cubic root of 9825628380 is about 2141.8387826435.

The spelling of 9825628380 in words is "nine billion, eight hundred twenty-five million, six hundred twenty-eight thousand, three hundred eighty".