63868923770 has 16 divisors (see below), whose sum is σ = 115606323360. Its totient is φ = 25404844944.

The previous prime is 63868923763. The next prime is 63868923793. The reversal of 63868923770 is 7732986836.

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, 17838692 + ... + 17842271.

It is an arithmetic number, because the mean of its divisors is an integer number (7225395210).

Almost surely, 2^63868923770 is an apocalyptic number.

63868923770 is a deficient number, since it is larger than the sum of its proper divisors (51737399590).

63868923770 is a wasteful number, since it uses less digits than its factorization.

63868923770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35681149.

The product of its (nonzero) digits is 18289152, while the sum is 59.

The spelling of 63868923770 in words is "sixty-three billion, eight hundred sixty-eight million, nine hundred twenty-three thousand, seven hundred seventy".