77863044453 has 8 divisors (see below), whose sum is σ = 103819331616. Its totient is φ = 51907726800.

The previous prime is 77863044439. The next prime is 77863044461. The reversal of 77863044453 is 35444036877.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77863044453 - 2⁴ = 77863044437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77863044396 and 77863044405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77863044433) 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 7 ways as a sum of consecutive naturals, for example, 27858 + ... + 395603.

It is an arithmetic number, because the mean of its divisors is an integer number (12977416452).

Almost surely, 2^77863044453 is an apocalyptic number.

It is an amenable number.

77863044453 is a deficient number, since it is larger than the sum of its proper divisors (25956287163).

77863044453 is a wasteful number, since it uses less digits than its factorization.

77863044453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484755.

The product of its (nonzero) digits is 6773760, while the sum is 51.

The spelling of 77863044453 in words is "seventy-seven billion, eight hundred sixty-three million, forty-four thousand, four hundred fifty-three".