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6902975289989 is a prime number
BaseRepresentation
bin110010001110011100101…
…1000111101101010000101
3220102220210012212000201002
41210130321120331222011
51401044243133234424
622403103313143045
71311503106560432
oct144347130755205
926386705760632
106902975289989
112221598655699
12935a1455aa85
133b0c4235b20c
1419c16a3c8b89
15be8677c6cae
hex6473963da85

6902975289989 has 2 divisors, whose sum is σ = 6902975289990. Its totient is φ = 6902975289988.

The previous prime is 6902975289953. The next prime is 6902975290027. The reversal of 6902975289989 is 9899825792096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5605449261889 + 1297526028100 = 2367583^2 + 1139090^2 .

It is a cyclic number.

It is not a de Polignac number, because 6902975289989 - 220 = 6902974241413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6902975289919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3451487644994 + 3451487644995.

It is an arithmetic number, because the mean of its divisors is an integer number (3451487644995).

Almost surely, 26902975289989 is an apocalyptic number.

It is an amenable number.

6902975289989 is a deficient number, since it is larger than the sum of its proper divisors (1).

6902975289989 is an equidigital number, since it uses as much as digits as its factorization.

6902975289989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3174474240, while the sum is 83.

The spelling of 6902975289989 in words is "six trillion, nine hundred two billion, nine hundred seventy-five million, two hundred eighty-nine thousand, nine hundred eighty-nine".