2187741898 has 16 divisors (see below), whose sum is σ = 3295512864. Its totient is φ = 1089245680.

The previous prime is 2187741893. The next prime is 2187741931. The reversal of 2187741898 is 8981477812.

It is a super-2 number, since 2×2187741898² = 9572429224529284808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2187741893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131993 + ... + 1133923.

It is an arithmetic number, because the mean of its divisors is an integer number (205969554).

Almost surely, 2^2187741898 is an apocalyptic number.

2187741898 is a deficient number, since it is larger than the sum of its proper divisors (1107770966).

2187741898 is a wasteful number, since it uses less digits than its factorization.

2187741898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037.

The product of its digits is 1806336, while the sum is 55.

The square root of 2187741898 is about 46773.3032615829. The cubic root of 2187741898 is about 1298.1713733730.

The spelling of 2187741898 in words is "two billion, one hundred eighty-seven million, seven hundred forty-one thousand, eight hundred ninety-eight".