6984158639487 has 8 divisors (see below), whose sum is σ = 9312334695936. Its totient is φ = 4656044171352.

The previous prime is 6984158639477. The next prime is 6984158639551. The reversal of 6984158639487 is 7849368514896.

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

It is not a de Polignac number, because 6984158639487 - 2³¹ = 6982011155839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6984158639467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15131823 + ... + 15586544.

It is an arithmetic number, because the mean of its divisors is an integer number (1164041836992).

Almost surely, 2^{6984158639487} is an apocalyptic number.

6984158639487 is a deficient number, since it is larger than the sum of its proper divisors (2328176056449).

6984158639487 is a wasteful number, since it uses less digits than its factorization.

6984158639487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30794157.

The product of its digits is 2508226560, while the sum is 78.

The spelling of 6984158639487 in words is "six trillion, nine hundred eighty-four billion, one hundred fifty-eight million, six hundred thirty-nine thousand, four hundred eighty-seven".