9786516481 has 4 divisors (see below), whose sum is σ = 11184590272. Its totient is φ = 8388442692.

The previous prime is 9786516479. The next prime is 9786516547. The reversal of 9786516481 is 1846156879.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9786516481 - 2¹ = 9786516479 is a prime.

It is a super-2 number, since 2×9786516481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9786516401) 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, 699036885 + ... + 699036898.

It is an arithmetic number, because the mean of its divisors is an integer number (2796147568).

Almost surely, 2^9786516481 is an apocalyptic number.

It is an amenable number.

9786516481 is a deficient number, since it is larger than the sum of its proper divisors (1398073791).

9786516481 is a wasteful number, since it uses less digits than its factorization.

9786516481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398073790.

The product of its digits is 2903040, while the sum is 55.

The square root of 9786516481 is about 98926.8238699697. The cubic root of 9786516481 is about 2138.9930687334.

The spelling of 9786516481 in words is "nine billion, seven hundred eighty-six million, five hundred sixteen thousand, four hundred eighty-one".