9747025820 has 96 divisors (see below), whose sum is σ = 24817508352. Its totient is φ = 3139089408.

The previous prime is 9747025811. The next prime is 9747025879. The reversal of 9747025820 is 285207479.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1298117 + ... + 1305603.

It is an arithmetic number, because the mean of its divisors is an integer number (258515712).

Almost surely, 2^9747025820 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 9747025820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12408754176).

9747025820 is an abundant number, since it is smaller than the sum of its proper divisors (15070482532).

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

9747025820 is a wasteful number, since it uses less digits than its factorization.

9747025820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8067 (or 8065 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 9747025820 is about 98727.0267961109. The cubic root of 9747025820 is about 2136.1120938686.

The spelling of 9747025820 in words is "nine billion, seven hundred forty-seven million, twenty-five thousand, eight hundred twenty".