786998607489 has 24 divisors (see below), whose sum is σ = 1141275306600. Its totient is φ = 522589966080.

The previous prime is 786998607469. The next prime is 786998607533. The reversal of 786998607489 is 984706899687.

786998607489 is a `hidden beast` number, since 78 + 6 + 9 + 9 + 8 + 60 + 7 + 489 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 127955013264 + 659043594225 = 357708^2 + 811815^2 .

It is not a de Polignac number, because 786998607489 - 2²⁰ = 786997558913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (786998607419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10666477 + ... + 10740005.

It is an arithmetic number, because the mean of its divisors is an integer number (47553137775).

Almost surely, 2^786998607489 is an apocalyptic number.

It is an amenable number.

786998607489 is a deficient number, since it is larger than the sum of its proper divisors (354276699111).

786998607489 is a wasteful number, since it uses less digits than its factorization.

786998607489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78225 (or 78222 counting only the distinct ones).

The product of its (nonzero) digits is 2633637888, while the sum is 81.

The spelling of 786998607489 in words is "seven hundred eighty-six billion, nine hundred ninety-eight million, six hundred seven thousand, four hundred eighty-nine".