38512306802869 has 8 divisors (see below), whose sum is σ = 38615945595480. Its totient is φ = 38408798294016.

The previous prime is 38512306802857. The next prime is 38512306802887. The reversal of 38512306802869 is 96820860321583.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5380057055025 + 33132249747844 = 2319495^2 + 5756062^2 .

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 38512306802869 - 2⁹ = 38512306802357 is a prime.

It is a super-2 number, since 2×38512306802869² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38512306808869) 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, 31978924 + ... + 33161365.

It is an arithmetic number, because the mean of its divisors is an integer number (4826993199435).

Almost surely, 2^{38512306802869} is an apocalyptic number.

It is an amenable number.

38512306802869 is a deficient number, since it is larger than the sum of its proper divisors (103638792611).

38512306802869 is an equidigital number, since it uses as much as digits as its factorization.

38512306802869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65141879.

The product of its (nonzero) digits is 29859840, while the sum is 61.

The spelling of 38512306802869 in words is "thirty-eight trillion, five hundred twelve billion, three hundred six million, eight hundred two thousand, eight hundred sixty-nine".