9774452736 has 260 divisors, whose sum is σ = 30934556532. Its totient is φ = 3064725504.

The previous prime is 9774452729. The next prime is 9774452759. The reversal of 9774452736 is 6372544779.

9774452736 is a `hidden beast` number, since 9 + 77 + 44 + 527 + 3 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6046617600 + 3727835136 = 77760^2 + 61056^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5639326 + ... + 5641058.

Almost surely, 2^9774452736 is an apocalyptic number.

9774452736 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9774452736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15467278266).

9774452736 is an abundant number, since it is smaller than the sum of its proper divisors (21160103796).

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

9774452736 is a wasteful number, since it uses less digits than its factorization.

9774452736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786 (or 1755 counting only the distinct ones).

The product of its digits is 8890560, while the sum is 54.

The square root of 9774452736 is about 98865.8319946785. The cubic root of 9774452736 is about 2138.1138019332.

The spelling of 9774452736 in words is "nine billion, seven hundred seventy-four million, four hundred fifty-two thousand, seven hundred thirty-six".