2905142538789 has 10 divisors (see below), whose sum is σ = 4339780829670. Its totient is φ = 1936761692472.

The previous prime is 2905142538769. The next prime is 2905142538811. The reversal of 2905142538789 is 9878352415092.

2905142538789 is a `hidden beast` number, since 2 + 9 + 0 + 5 + 14 + 2 + 538 + 7 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2426912201025 + 478230337764 = 1557855^2 + 691542^2 .

It is not a de Polignac number, because 2905142538789 - 2²⁰ = 2905141490213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2905142538769) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 17932978554 + ... + 17932978715.

It is an arithmetic number, because the mean of its divisors is an integer number (433978082967).

Almost surely, 2^{2905142538789} is an apocalyptic number.

It is an amenable number.

2905142538789 is a deficient number, since it is larger than the sum of its proper divisors (1434638290881).

2905142538789 is an equidigital number, since it uses as much as digits as its factorization.

2905142538789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35865957281 (or 35865957272 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 2905142538789 in words is "two trillion, nine hundred five billion, one hundred forty-two million, five hundred thirty-eight thousand, seven hundred eighty-nine".