36408775829 has 4 divisors (see below), whose sum is σ = 36769258860. Its totient is φ = 36048292800.

The previous prime is 36408775811. The next prime is 36408775891. The reversal of 36408775829 is 92857780463.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34694650225 + 1714125604 = 186265^2 + 41402^2 .

It is a cyclic number.

It is not a de Polignac number, because 36408775829 - 2¹² = 36408771733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36408775729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180241364 + ... + 180241565.

It is an arithmetic number, because the mean of its divisors is an integer number (9192314715).

Almost surely, 2^36408775829 is an apocalyptic number.

It is an amenable number.

36408775829 is a deficient number, since it is larger than the sum of its proper divisors (360483031).

36408775829 is a wasteful number, since it uses less digits than its factorization.

36408775829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360483030.

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 36408775829 in words is "thirty-six billion, four hundred eight million, seven hundred seventy-five thousand, eight hundred twenty-nine".