4091898005 has 8 divisors (see below), whose sum is σ = 5287991352. Its totient is φ = 3021709248.

The previous prime is 4091898001. The next prime is 4091898029. The reversal of 4091898005 is 5008981904.

It can be written as a sum of positive squares in 4 ways, for example, as 31787044 + 4060110961 = 5638^2 + 63719^2 .

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 4091898005 - 2² = 4091898001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4091898001) 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, 31476074 + ... + 31476203.

It is an arithmetic number, because the mean of its divisors is an integer number (660998919).

Almost surely, 2^4091898005 is an apocalyptic number.

It is an amenable number.

4091898005 is a deficient number, since it is larger than the sum of its proper divisors (1196093347).

4091898005 is a wasteful number, since it uses less digits than its factorization.

4091898005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62952295.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 4091898005 is about 63967.9451366073. The cubic root of 4091898005 is about 1599.4657076699.

The spelling of 4091898005 in words is "four billion, ninety-one million, eight hundred ninety-eight thousand, five".