36821568479 has 4 divisors (see below), whose sum is σ = 37445662920. Its totient is φ = 36197474040.

The previous prime is 36821568473. The next prime is 36821568533. The reversal of 36821568479 is 97486512863.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36821568479 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59), and also a Moran number because the ratio is a prime number: 624094381 = 36821568479 / (3 + 6 + 8 + 2 + 1 + 5 + 6 + 8 + 4 + 7 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36821568473) 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, 312047132 + ... + 312047249.

It is an arithmetic number, because the mean of its divisors is an integer number (9361415730).

Almost surely, 2^36821568479 is an apocalyptic number.

36821568479 is a deficient number, since it is larger than the sum of its proper divisors (624094441).

36821568479 is an equidigital number, since it uses as much as digits as its factorization.

36821568479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624094440.

The product of its digits is 17418240, while the sum is 59.

The spelling of 36821568479 in words is "thirty-six billion, eight hundred twenty-one million, five hundred sixty-eight thousand, four hundred seventy-nine".