2187705004 has 24 divisors (see below), whose sum is σ = 3851538768. Its totient is φ = 1087285440.

The previous prime is 2187704977. The next prime is 2187705017. The reversal of 2187705004 is 4005077812.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508647 + ... + 512929.

It is an arithmetic number, because the mean of its divisors is an integer number (160480782).

Almost surely, 2^2187705004 is an apocalyptic number.

It is an amenable number.

2187705004 is a deficient number, since it is larger than the sum of its proper divisors (1663833764).

2187705004 is a wasteful number, since it uses less digits than its factorization.

2187705004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025 (or 5023 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 2187705004 is about 46772.9088682754. The cubic root of 2187705004 is about 1298.1640758936.

The spelling of 2187705004 in words is "two billion, one hundred eighty-seven million, seven hundred five thousand, four".