2188873451 has 8 divisors (see below), whose sum is σ = 2293208064. Its totient is φ = 2086646760.

The previous prime is 2188873441. The next prime is 2188873457. The reversal of 2188873451 is 1543788812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2188873451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2188873396 and 2188873405.

It is not an unprimeable number, because it can be changed into a prime (2188873457) 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, 524855 + ... + 529008.

It is an arithmetic number, because the mean of its divisors is an integer number (286651008).

Almost surely, 2^2188873451 is an apocalyptic number.

2188873451 is a deficient number, since it is larger than the sum of its proper divisors (104334613).

2188873451 is a wasteful number, since it uses less digits than its factorization.

2188873451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053961.

The product of its digits is 430080, while the sum is 47.

The square root of 2188873451 is about 46785.3978394969. The cubic root of 2188873451 is about 1298.3951500027.

The spelling of 2188873451 in words is "two billion, one hundred eighty-eight million, eight hundred seventy-three thousand, four hundred fifty-one".