9121395465 has 96 divisors (see below), whose sum is σ = 19491204096. Its totient is φ = 3842657280.

The previous prime is 9121395449. The next prime is 9121395487. The reversal of 9121395465 is 5645931219.

9121395465 is a `hidden beast` number, since 91 + 2 + 13 + 9 + 546 + 5 = 666.

It is not a de Polignac number, because 9121395465 - 2⁴ = 9121395449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 9121395465.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3114832 + ... + 3117758.

It is an arithmetic number, because the mean of its divisors is an integer number (203033376).

Almost surely, 2^9121395465 is an apocalyptic number.

It is an amenable number.

9121395465 is an abundant number, since it is smaller than the sum of its proper divisors (10369808631).

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

9121395465 is a wasteful number, since it uses less digits than its factorization.

9121395465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719 (or 3716 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 9121395465 is about 95505.9970106590. The cubic root of 9121395465 is about 2089.3944099087.

The spelling of 9121395465 in words is "nine billion, one hundred twenty-one million, three hundred ninety-five thousand, four hundred sixty-five".