863468490649 has 16 divisors (see below), whose sum is σ = 922475022336. Its totient is φ = 806829235200.

The previous prime is 863468490637. The next prime is 863468490653. The reversal of 863468490649 is 946094864368.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-863468490649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (863468490629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3378577 + ... + 3625150.

It is an arithmetic number, because the mean of its divisors is an integer number (57654688896).

Almost surely, 2^863468490649 is an apocalyptic number.

It is an amenable number.

863468490649 is a deficient number, since it is larger than the sum of its proper divisors (59006531687).

863468490649 is a wasteful number, since it uses less digits than its factorization.

863468490649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7003896.

The product of its (nonzero) digits is 214990848, while the sum is 67.

The spelling of 863468490649 in words is "eight hundred sixty-three billion, four hundred sixty-eight million, four hundred ninety thousand, six hundred forty-nine".