4078198817 has 16 divisors (see below), whose sum is σ = 5352115200. Its totient is φ = 3010562640.

The previous prime is 4078198781. The next prime is 4078198837. The reversal of 4078198817 is 7188918704.

It is a cyclic number.

It is not a de Polignac number, because 4078198817 - 2¹⁸ = 4077936673 is a prime.

It is a super-4 number, since 4×4078198817⁴ (a number of 40 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4078198837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1392317 + ... + 1395242.

It is an arithmetic number, because the mean of its divisors is an integer number (334507200).

Almost surely, 2^4078198817 is an apocalyptic number.

It is an amenable number.

4078198817 is a deficient number, since it is larger than the sum of its proper divisors (1273916383).

4078198817 is a wasteful number, since it uses less digits than its factorization.

4078198817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787596.

The product of its (nonzero) digits is 903168, while the sum is 53.

The square root of 4078198817 is about 63860.7768274079. The cubic root of 4078198817 is about 1597.6787716957.

The spelling of 4078198817 in words is "four billion, seventy-eight million, one hundred ninety-eight thousand, eight hundred seventeen".