9007361987905 has 4 divisors (see below), whose sum is σ = 10808834385492. Its totient is φ = 7205889590320.

The previous prime is 9007361987881. The next prime is 9007361987909. The reversal of 9007361987905 is 5097891637009.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5883457741056 + 3123904246849 = 2425584^2 + 1767457^2 .

It is not a de Polignac number, because 9007361987905 - 2²⁵ = 9007328433473 is a prime.

It is a super-2 number, since 2×9007361987905² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9007361987909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900736198786 + ... + 900736198795.

It is an arithmetic number, because the mean of its divisors is an integer number (2702208596373).

Almost surely, 2^{9007361987905} is an apocalyptic number.

It is an amenable number.

9007361987905 is a deficient number, since it is larger than the sum of its proper divisors (1801472397587).

9007361987905 is a wasteful number, since it uses less digits than its factorization.

9007361987905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801472397586.

The product of its (nonzero) digits is 25719120, while the sum is 64.

The spelling of 9007361987905 in words is "nine trillion, seven billion, three hundred sixty-one million, nine hundred eighty-seven thousand, nine hundred five".