838120760465 has 8 divisors (see below), whose sum is σ = 1032927207720. Its totient is φ = 652375078272.

The previous prime is 838120760461. The next prime is 838120760473. The reversal of 838120760465 is 564067021838.

It can be written as a sum of positive squares in 4 ways, for example, as 546694614544 + 291426145921 = 739388^2 + 539839^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 838120760465 - 2² = 838120760461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (838120760461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2265191060 + ... + 2265191429.

It is an arithmetic number, because the mean of its divisors is an integer number (129115900965).

Almost surely, 2^838120760465 is an apocalyptic number.

It is an amenable number.

838120760465 is a deficient number, since it is larger than the sum of its proper divisors (194806447255).

838120760465 is a wasteful number, since it uses less digits than its factorization.

838120760465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4530382531.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 838120760465 in words is "eight hundred thirty-eight billion, one hundred twenty million, seven hundred sixty thousand, four hundred sixty-five".