3822509081 has 4 divisors (see below), whose sum is σ = 3988705152. Its totient is φ = 3656313012.

The previous prime is 3822509077. The next prime is 3822509137. The reversal of 3822509081 is 1809052283.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1809052283 = 3761 ⋅481003.

It is a cyclic number.

It is not a de Polignac number, because 3822509081 - 2² = 3822509077 is a prime.

It is a super-2 number, since 2×3822509081² = 29223151348654929122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3822509011) 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, 83098001 + ... + 83098046.

It is an arithmetic number, because the mean of its divisors is an integer number (997176288).

Almost surely, 2^3822509081 is an apocalyptic number.

It is an amenable number.

3822509081 is a deficient number, since it is larger than the sum of its proper divisors (166196071).

3822509081 is a wasteful number, since it uses less digits than its factorization.

3822509081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166196070.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 3822509081 is about 61826.4432180924. The cubic root of 3822509081 is about 1563.5658459695.

The spelling of 3822509081 in words is "three billion, eight hundred twenty-two million, five hundred nine thousand, eighty-one".