6874398657 has 12 divisors (see below), whose sum is σ = 11348213760. Its totient is φ = 3928227768.

The previous prime is 6874398649. The next prime is 6874398689. The reversal of 6874398657 is 7568934786.

It is not a de Polignac number, because 6874398657 - 2³ = 6874398649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 109117439 = 6874398657 / (6 + 8 + 7 + 4 + 3 + 9 + 8 + 6 + 5 + 7).

It is a junction number, because it is equal to n+sod(n) for n = 6874398594 and 6874398603.

It is not an unprimeable number, because it can be changed into a prime (6874398857) 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, 54558657 + ... + 54558782.

It is an arithmetic number, because the mean of its divisors is an integer number (945684480).

Almost surely, 2^6874398657 is an apocalyptic number.

It is an amenable number.

6874398657 is a deficient number, since it is larger than the sum of its proper divisors (4473815103).

6874398657 is a wasteful number, since it uses less digits than its factorization.

6874398657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109117452 (or 109117449 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The square root of 6874398657 is about 82911.9934448569. The cubic root of 6874398657 is about 1901.4207892772.

The spelling of 6874398657 in words is "six billion, eight hundred seventy-four million, three hundred ninety-eight thousand, six hundred fifty-seven".