9077172720 has 320 divisors, whose sum is σ = 35901702144. Its totient is φ = 1842140160.

The previous prime is 9077172703. The next prime is 9077172733. The reversal of 9077172720 is 272717709.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 788929 + ... + 800351.

Almost surely, 2^9077172720 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 9077172720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17950851072).

9077172720 is an abundant number, since it is smaller than the sum of its proper divisors (26824529424).

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

9077172720 is a wasteful number, since it uses less digits than its factorization.

9077172720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11500 (or 11494 counting only the distinct ones).

The product of its (nonzero) digits is 86436, while the sum is 42.

The square root of 9077172720 is about 95274.1975563164. The cubic root of 9077172720 is about 2086.0123073953.

The spelling of 9077172720 in words is "nine billion, seventy-seven million, one hundred seventy-two thousand, seven hundred twenty".