4889978486493 has 8 divisors (see below), whose sum is σ = 6556395736800. Its totient is φ = 3241773446928.

The previous prime is 4889978486377. The next prime is 4889978486527. The reversal of 4889978486493 is 3946848799884.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4889978486493 - 2¹² = 4889978482397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4889978486093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4553052058 + ... + 4553053131.

It is an arithmetic number, because the mean of its divisors is an integer number (819549467100).

Almost surely, 2^{4889978486493} is an apocalyptic number.

It is an amenable number.

4889978486493 is a deficient number, since it is larger than the sum of its proper divisors (1666417250307).

4889978486493 is a wasteful number, since it uses less digits than its factorization.

4889978486493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9106105371.

The product of its digits is 24078974976, while the sum is 87.

The spelling of 4889978486493 in words is "four trillion, eight hundred eighty-nine billion, nine hundred seventy-eight million, four hundred eighty-six thousand, four hundred ninety-three".