9201377280 has 224 divisors, whose sum is σ = 29769352704. Its totient is φ = 2426535936.

The previous prime is 9201377257. The next prime is 9201377281. The reversal of 9201377280 is 827731029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9201377281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12656277 + ... + 12657003.

It is an arithmetic number, because the mean of its divisors is an integer number (132898896).

Almost surely, 2^9201377280 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 9201377280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14884676352).

9201377280 is an abundant number, since it is smaller than the sum of its proper divisors (20567975424).

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

9201377280 is a wasteful number, since it uses less digits than its factorization.

9201377280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 9201377280 is about 95923.8097658762. The cubic root of 9201377280 is about 2095.4836635801.

The spelling of 9201377280 in words is "nine billion, two hundred one million, three hundred seventy-seven thousand, two hundred eighty".