2187954712 has 8 divisors (see below), whose sum is σ = 4102415100. Its totient is φ = 1093977352.

The previous prime is 2187954697. The next prime is 2187954733. The reversal of 2187954712 is 2174597812.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136747162 + ... + 136747177.

Almost surely, 2^2187954712 is an apocalyptic number.

It is an amenable number.

2187954712 is a deficient number, since it is larger than the sum of its proper divisors (1914460388).

2187954712 is a wasteful number, since it uses less digits than its factorization.

2187954712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273494345 (or 273494341 counting only the distinct ones).

The product of its digits is 282240, while the sum is 46.

The square root of 2187954712 is about 46775.5781578379. The cubic root of 2187954712 is about 1298.2134654932.

The spelling of 2187954712 in words is "two billion, one hundred eighty-seven million, nine hundred fifty-four thousand, seven hundred twelve".