4278190081 has 8 divisors (see below), whose sum is σ = 4912754400. Its totient is φ = 3684565440.

The previous prime is 4278190079. The next prime is 4278190093. The reversal of 4278190081 is 1800918724.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4278190081 - 2¹ = 4278190079 is a prime.

It is a super-2 number, since 2×4278190081² = 36605820738333573122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4278190001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10234696 + ... + 10235113.

It is an arithmetic number, because the mean of its divisors is an integer number (614094300).

It is a Proth number, since it is equal to 255 ⋅ 2²⁴ + 1 and 255 < 2²⁴.

Almost surely, 2^4278190081 is an apocalyptic number.

It is an amenable number.

4278190081 is a deficient number, since it is larger than the sum of its proper divisors (634564319).

4278190081 is a wasteful number, since it uses less digits than its factorization.

4278190081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20469839.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 4278190081 is about 65407.8747629060. The cubic root of 4278190081 is about 1623.3793807050.

The spelling of 4278190081 in words is "four billion, two hundred seventy-eight million, one hundred ninety thousand, eighty-one".