6982638493 has 12 divisors (see below), whose sum is σ = 7279115004. Its totient is φ = 6697488000.

The previous prime is 6982638479. The next prime is 6982638503. The reversal of 6982638493 is 3948362896.

It can be written as a sum of positive squares in 2 ways, for example, as 966774649 + 6015863844 = 31093^2 + 77562^2 .

It is not a de Polignac number, because 6982638493 - 2¹³ = 6982630301 is a prime.

It is a super-2 number, since 2×6982638493² = 97514480647850622098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6982638433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76443 + ... + 140743.

It is an arithmetic number, because the mean of its divisors is an integer number (606592917).

Almost surely, 2^6982638493 is an apocalyptic number.

It is an amenable number.

6982638493 is a deficient number, since it is larger than the sum of its proper divisors (296476511).

6982638493 is a wasteful number, since it uses less digits than its factorization.

6982638493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64476 (or 64445 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 58.

The square root of 6982638493 is about 83562.1833905745. The cubic root of 6982638493 is about 1911.3483797662.

The spelling of 6982638493 in words is "six billion, nine hundred eighty-two million, six hundred thirty-eight thousand, four hundred ninety-three".