4169885016978 has 42 divisors (see below), whose sum is σ = 9378126643959. Its totient is φ = 1389935681532.

The previous prime is 4169885016937. The next prime is 4169885016989. The reversal of 4169885016978 is 8796105889614.

4169885016978 is a `hidden beast` number, since 41 + 6 + 9 + 8 + 8 + 501 + 6 + 9 + 78 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2084942508489 + 2084942508489 = 1443933^2 + 1443933^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1443933.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 77945643 + ... + 77999121.

Almost surely, 2^{4169885016978} is an apocalyptic number.

4169885016978 is an abundant number, since it is smaller than the sum of its proper divisors (5208241626981).

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

4169885016978 is an frugal number, since it uses more digits than its factorization.

4169885016978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106978 (or 53484 counting only the distinct ones).

The product of its (nonzero) digits is 209018880, while the sum is 72.

Multiplying 4169885016978 by its sum of digits (72), we get a square (300231721222416 = 17327196²).

The spelling of 4169885016978 in words is "four trillion, one hundred sixty-nine billion, eight hundred eighty-five million, sixteen thousand, nine hundred seventy-eight".