4281778146436 has 12 divisors (see below), whose sum is σ = 8563556292928. Its totient is φ = 1835047777032.

The previous prime is 4281778146361. The next prime is 4281778146487. The reversal of 4281778146436 is 6346418771824.

4281778146436 is an admirable number.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76460324016 + ... + 76460324071.

Almost surely, 2^{4281778146436} is an apocalyptic number.

It is an amenable number.

4281778146436 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4281778146436 is a wasteful number, since it uses less digits than its factorization.

4281778146436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152920648098 (or 152920648096 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 61.

The spelling of 4281778146436 in words is "four trillion, two hundred eighty-one billion, seven hundred seventy-eight million, one hundred forty-six thousand, four hundred thirty-six".