9145517280 has 96 divisors (see below), whose sum is σ = 28821580704. Its totient is φ = 2437687296.

The previous prime is 9145517273. The next prime is 9145517281. The reversal of 9145517280 is 827155419.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9145517281) 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, 2089174 + ... + 2093546.

It is an arithmetic number, because the mean of its divisors is an integer number (300224799).

Almost surely, 2^9145517280 is an apocalyptic number.

It is an amenable number.

9145517280 is an abundant number, since it is smaller than the sum of its proper divisors (19676063424).

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

9145517280 is a wasteful number, since it uses less digits than its factorization.

9145517280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8748 (or 8740 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 42.

The square root of 9145517280 is about 95632.1979251758. The cubic root of 9145517280 is about 2091.2346116138.

The spelling of 9145517280 in words is "nine billion, one hundred forty-five million, five hundred seventeen thousand, two hundred eighty".