36821568478 has 16 divisors (see below), whose sum is σ = 56855272320. Its totient is φ = 17874939096.

The previous prime is 36821568473. The next prime is 36821568533. The reversal of 36821568478 is 87486512863.

It is a happy 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 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, 1267548 + ... + 1296271.

It is an arithmetic number, because the mean of its divisors is an integer number (3553454520).

Almost surely, 2^36821568478 is an apocalyptic number.

36821568478 is a deficient number, since it is larger than the sum of its proper divisors (20033703842).

36821568478 is a wasteful number, since it uses less digits than its factorization.

36821568478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564031.

The product of its digits is 15482880, while the sum is 58.

The spelling of 36821568478 in words is "thirty-six billion, eight hundred twenty-one million, five hundred sixty-eight thousand, four hundred seventy-eight".