2445520895989 has 2 divisors, whose sum is σ = 2445520895990. Its totient is φ = 2445520895988.

The previous prime is 2445520895981. The next prime is 2445520896059. The reversal of 2445520895989 is 9895980255442.

It is an a-pointer prime, because the next prime (2445520896059) can be obtained adding 2445520895989 to its sum of digits (70).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1619179900900 + 826340995089 = 1272470^2 + 909033^2 .

It is a cyclic number.

It is not a de Polignac number, because 2445520895989 - 2³ = 2445520895981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2445520895981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222760447994 + 1222760447995.

It is an arithmetic number, because the mean of its divisors is an integer number (1222760447995).

Almost surely, 2^{2445520895989} is an apocalyptic number.

It is an amenable number.

2445520895989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2445520895989 is an equidigital number, since it uses as much as digits as its factorization.

2445520895989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248000, while the sum is 70.

The spelling of 2445520895989 in words is "two trillion, four hundred forty-five billion, five hundred twenty million, eight hundred ninety-five thousand, nine hundred eighty-nine".