2185460688427 has 2 divisors, whose sum is σ = 2185460688428. Its totient is φ = 2185460688426.

The previous prime is 2185460688407. The next prime is 2185460688449. The reversal of 2185460688427 is 7248860645812.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2185460688427 is a prime.

It is not a weakly prime, because it can be changed into another prime (2185460688407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1092730344213 + 1092730344214.

It is an arithmetic number, because the mean of its divisors is an integer number (1092730344214).

Almost surely, 2^{2185460688427} is an apocalyptic number.

2185460688427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2185460688427 is an equidigital number, since it uses as much as digits as its factorization.

2185460688427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41287680, while the sum is 61.

The spelling of 2185460688427 in words is "two trillion, one hundred eighty-five billion, four hundred sixty million, six hundred eighty-eight thousand, four hundred twenty-seven".