863749334455 has 16 divisors (see below), whose sum is σ = 1203989707584. Its totient is φ = 582575662080.

The previous prime is 863749334449. The next prime is 863749334501. The reversal of 863749334455 is 554433947368.

It is not a de Polignac number, because 863749334455 - 2⁹ = 863749333943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 863749334393 and 863749334402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202281082 + ... + 202285351.

It is an arithmetic number, because the mean of its divisors is an integer number (75249356724).

Almost surely, 2^863749334455 is an apocalyptic number.

863749334455 is a deficient number, since it is larger than the sum of its proper divisors (340240373129).

863749334455 is a wasteful number, since it uses less digits than its factorization.

863749334455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404566506.

The product of its digits is 130636800, while the sum is 61.

The spelling of 863749334455 in words is "eight hundred sixty-three billion, seven hundred forty-nine million, three hundred thirty-four thousand, four hundred fifty-five".