9774527490 has 384 divisors, whose sum is σ = 32506306560. Its totient is φ = 1983066624.

The previous prime is 9774527473. The next prime is 9774527513. The reversal of 9774527490 is 947254779.

9774527490 is a `hidden beast` number, since 9 + 7 + 74 + 527 + 49 + 0 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 25790121 + ... + 25790499.

It is an arithmetic number, because the mean of its divisors is an integer number (84651840).

Almost surely, 2^9774527490 is an apocalyptic number.

9774527490 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9774527490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16253153280).

9774527490 is an abundant number, since it is smaller than the sum of its proper divisors (22731779070).

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

9774527490 is a wasteful number, since it uses less digits than its factorization.

9774527490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 54.

The square root of 9774527490 is about 98866.2100517664. The cubic root of 9774527490 is about 2138.1192526101.

The spelling of 9774527490 in words is "nine billion, seven hundred seventy-four million, five hundred twenty-seven thousand, four hundred ninety".