822005380381 has 4 divisors (see below), whose sum is σ = 826309073664. Its totient is φ = 817701687100.

The previous prime is 822005380337. The next prime is 822005380423. The reversal of 822005380381 is 183083500228.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 822005380381 - 2⁷ = 822005380253 is a prime.

It is a super-2 number, since 2×822005380381² (a number of 25 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 (822005380181) 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, 2151846355 + ... + 2151846736.

It is an arithmetic number, because the mean of its divisors is an integer number (206577268416).

Almost surely, 2^822005380381 is an apocalyptic number.

It is an amenable number.

822005380381 is a deficient number, since it is larger than the sum of its proper divisors (4303693283).

822005380381 is a wasteful number, since it uses less digits than its factorization.

822005380381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303693282.

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 822005380381 in words is "eight hundred twenty-two billion, five million, three hundred eighty thousand, three hundred eighty-one".