821000036363 has 16 divisors (see below), whose sum is σ = 889631834112. Its totient is φ = 753161220000.

The previous prime is 821000036341. The next prime is 821000036369. The reversal of 821000036363 is 363630000128.

821000036363 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 821000036363 - 2¹⁴ = 821000019979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (821000036369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1678838 + ... + 2111988.

It is an arithmetic number, because the mean of its divisors is an integer number (55601989632).

Almost surely, 2^821000036363 is an apocalyptic number.

821000036363 is a deficient number, since it is larger than the sum of its proper divisors (68631797749).

821000036363 is a wasteful number, since it uses less digits than its factorization.

821000036363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434066.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 821000036363 in words is "eight hundred twenty-one billion, thirty-six thousand, three hundred sixty-three".