6449802461 has 4 divisors (see below), whose sum is σ = 6455871072. Its totient is φ = 6443733852.

The previous prime is 6449802421. The next prime is 6449802479. The reversal of 6449802461 is 1642089446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6449802461 - 2¹⁰ = 6449801437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6449802421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3032711 + ... + 3034836.

It is an arithmetic number, because the mean of its divisors is an integer number (1613967768).

Almost surely, 2^6449802461 is an apocalyptic number.

It is an amenable number.

6449802461 is a deficient number, since it is larger than the sum of its proper divisors (6068611).

6449802461 is a wasteful number, since it uses less digits than its factorization.

6449802461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6068610.

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 6449802461 is about 80310.6621875327. The cubic root of 6449802461 is about 1861.4389817407.

The spelling of 6449802461 in words is "six billion, four hundred forty-nine million, eight hundred two thousand, four hundred sixty-one".