9877494137 has 16 divisors (see below), whose sum is σ = 11830281600. Its totient is φ = 8237590704.

The previous prime is 9877494127. The next prime is 9877494157. The reversal of 9877494137 is 7314947789.

It is not a de Polignac number, because 9877494137 - 2¹⁶ = 9877428601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9877494127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376463 + ... + 401844.

It is an arithmetic number, because the mean of its divisors is an integer number (739392600).

Almost surely, 2^9877494137 is an apocalyptic number.

It is an amenable number.

9877494137 is a deficient number, since it is larger than the sum of its proper divisors (1952787463).

9877494137 is an equidigital number, since it uses as much as digits as its factorization.

9877494137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778365 (or 778351 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 59.

The square root of 9877494137 is about 99385.5831446392. The cubic root of 9877494137 is about 2145.6008218337.

The spelling of 9877494137 in words is "nine billion, eight hundred seventy-seven million, four hundred ninety-four thousand, one hundred thirty-seven".