63728454076 has 24 divisors (see below), whose sum is σ = 127555707776. Its totient is φ = 27291023280.

The previous prime is 63728454061. The next prime is 63728454107. The reversal of 63728454076 is 67045482736.

63728454076 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63728454076² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 845346 + ... + 917641.

Almost surely, 2^63728454076 is an apocalyptic number.

It is an amenable number.

63728454076 is an abundant number, since it is smaller than the sum of its proper divisors (63827253700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63728454076 is a wasteful number, since it uses less digits than its factorization.

63728454076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764289 (or 1764287 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 52.

The spelling of 63728454076 in words is "sixty-three billion, seven hundred twenty-eight million, four hundred fifty-four thousand, seventy-six".