2188376534 has 4 divisors (see below), whose sum is σ = 3282564804. Its totient is φ = 1094188266.

The previous prime is 2188376513. The next prime is 2188376537. The reversal of 2188376534 is 4356738812.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188376537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 547094132 + ... + 547094135.

It is an arithmetic number, because the mean of its divisors is an integer number (820641201).

Almost surely, 2^2188376534 is an apocalyptic number.

2188376534 is a deficient number, since it is larger than the sum of its proper divisors (1094188270).

2188376534 is a wasteful number, since it uses less digits than its factorization.

2188376534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094188269.

The product of its digits is 967680, while the sum is 47.

The square root of 2188376534 is about 46780.0869387820. The cubic root of 2188376534 is about 1298.2968888854.

The spelling of 2188376534 in words is "two billion, one hundred eighty-eight million, three hundred seventy-six thousand, five hundred thirty-four".