2145489436807 has 2 divisors, whose sum is σ = 2145489436808. Its totient is φ = 2145489436806.

The previous prime is 2145489436793. The next prime is 2145489436859. The reversal of 2145489436807 is 7086349845412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2145489436807 - 2¹⁹ = 2145488912519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145489436877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072744718403 + 1072744718404.

It is an arithmetic number, because the mean of its divisors is an integer number (1072744718404).

It is a 1-persistent number, because it is pandigital, but 2⋅2145489436807 = 4290978873614 is not.

Almost surely, 2^{2145489436807} is an apocalyptic number.

2145489436807 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145489436807 is an equidigital number, since it uses as much as digits as its factorization.

2145489436807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46448640, while the sum is 61.

The spelling of 2145489436807 in words is "two trillion, one hundred forty-five billion, four hundred eighty-nine million, four hundred thirty-six thousand, eight hundred seven".