838040715265 has 8 divisors (see below), whose sum is σ = 1083006462888. Its totient is φ = 618860835840.

The previous prime is 838040715233. The next prime is 838040715269. The reversal of 838040715265 is 562517040838.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 179477627904 + 658563087361 = 423648^2 + 811519^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 838040715265 - 2⁵ = 838040715233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (838040715269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6446466976 + ... + 6446467105.

It is an arithmetic number, because the mean of its divisors is an integer number (135375807861).

Almost surely, 2^838040715265 is an apocalyptic number.

It is an amenable number.

838040715265 is a deficient number, since it is larger than the sum of its proper divisors (244965747623).

838040715265 is a wasteful number, since it uses less digits than its factorization.

838040715265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12892934099.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 838040715265 in words is "eight hundred thirty-eight billion, forty million, seven hundred fifteen thousand, two hundred sixty-five".