63865000770 has 32 divisors (see below), whose sum is σ = 161343161280. Its totient is φ = 16134315840.

The previous prime is 63865000757. The next prime is 63865000781. The reversal of 63865000770 is 7700056836.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 56021361 + ... + 56022500.

It is an arithmetic number, because the mean of its divisors is an integer number (5041973790).

Almost surely, 2^63865000770 is an apocalyptic number.

63865000770 is an abundant number, since it is smaller than the sum of its proper divisors (97478160510).

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

63865000770 is a wasteful number, since it uses less digits than its factorization.

63865000770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112043890.

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 63865000770 in words is "sixty-three billion, eight hundred sixty-five million, seven hundred seventy", and thus it is an aban number.