9787492947879 has 48 divisors (see below), whose sum is σ = 15223759293600. Its totient is φ = 6036712101888.

The previous prime is 9787492947851. The next prime is 9787492947917.

9787492947879 is a `hidden beast` number, since 9 + 7 + 8 + 7 + 49 + 29 + 478 + 79 = 666.

9787492947879 is nontrivially palindromic in base 10.

9787492947879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9787492947879 - 2¹⁵ = 9787492915111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9787492949879) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 249604027 + ... + 249643235.

It is an arithmetic number, because the mean of its divisors is an integer number (317161651950).

Almost surely, 2^{9787492947879} is an apocalyptic number.

9787492947879 is a deficient number, since it is larger than the sum of its proper divisors (5436266345721).

9787492947879 is a wasteful number, since it uses less digits than its factorization.

9787492947879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66944 (or 66941 counting only the distinct ones).

The product of its digits is 32262064128, while the sum is 90.

The spelling of 9787492947879 in words is "nine trillion, seven hundred eighty-seven billion, four hundred ninety-two million, nine hundred forty-seven thousand, eight hundred seventy-nine".