6407098249 has 4 divisors (see below), whose sum is σ = 6563368980. Its totient is φ = 6250827520.

The previous prime is 6407098241. The next prime is 6407098309. The reversal of 6407098249 is 9428907046.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1760222025 + 4646876224 = 41955^2 + 68168^2 .

It is a cyclic number.

It is not a de Polignac number, because 6407098249 - 2³ = 6407098241 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6407098241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78135304 + ... + 78135385.

It is an arithmetic number, because the mean of its divisors is an integer number (1640842245).

Almost surely, 2^6407098249 is an apocalyptic number.

It is an amenable number.

6407098249 is a deficient number, since it is larger than the sum of its proper divisors (156270731).

6407098249 is a wasteful number, since it uses less digits than its factorization.

6407098249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156270730.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 6407098249 is about 80044.3517620075. The cubic root of 6407098249 is about 1857.3216788663.

The spelling of 6407098249 in words is "six billion, four hundred seven million, ninety-eight thousand, two hundred forty-nine".