478851923912 has 8 divisors (see below), whose sum is σ = 897847357350. Its totient is φ = 239425961952.

The previous prime is 478851923909. The next prime is 478851923939. The reversal of 478851923912 is 219329158874.

It can be written as a sum of positive squares in only one way, i.e., 370206534916 + 108645388996 = 608446^2 + 329614^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29928245237 + ... + 29928245252.

Almost surely, 2^478851923912 is an apocalyptic number.

It is an amenable number.

478851923912 is a deficient number, since it is larger than the sum of its proper divisors (418995433438).

478851923912 is a wasteful number, since it uses less digits than its factorization.

478851923912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59856490495 (or 59856490491 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 59.

The spelling of 478851923912 in words is "four hundred seventy-eight billion, eight hundred fifty-one million, nine hundred twenty-three thousand, nine hundred twelve".