2186472451 has 2 divisors, whose sum is σ = 2186472452. Its totient is φ = 2186472450.

The previous prime is 2186472389. The next prime is 2186472473. The reversal of 2186472451 is 1542746812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2186472451 - 2⁹ = 2186471939 is a prime.

It is not a weakly prime, because it can be changed into another prime (2186472251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1093236225 + 1093236226.

It is an arithmetic number, because the mean of its divisors is an integer number (1093236226).

Almost surely, 2^2186472451 is an apocalyptic number.

2186472451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2186472451 is an equidigital number, since it uses as much as digits as its factorization.

2186472451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 40.

The square root of 2186472451 is about 46759.7310834868. The cubic root of 2186472451 is about 1297.9202348809.

The spelling of 2186472451 in words is "two billion, one hundred eighty-six million, four hundred seventy-two thousand, four hundred fifty-one".