412564333981 has 4 divisors (see below), whose sum is σ = 414724356864. Its totient is φ = 410404311100.

The previous prime is 412564333963. The next prime is 412564333999. The reversal of 412564333981 is 189333465214.

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: 189333465214 = 2 ⋅94666732607.

It is an interprime number because it is at equal distance from previous prime (412564333963) and next prime (412564333999).

It is a cyclic number.

It is not a de Polignac number, because 412564333981 - 2¹⁷ = 412564202909 is a prime.

It is a super-2 number, since 2×412564333981² (a number of 24 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 (412564339981) 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, 1080011155 + ... + 1080011536.

It is an arithmetic number, because the mean of its divisors is an integer number (103681089216).

Almost surely, 2^412564333981 is an apocalyptic number.

It is an amenable number.

412564333981 is a deficient number, since it is larger than the sum of its proper divisors (2160022883).

412564333981 is a wasteful number, since it uses less digits than its factorization.

412564333981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160022882.

The product of its digits is 1866240, while the sum is 49.

The spelling of 412564333981 in words is "four hundred twelve billion, five hundred sixty-four million, three hundred thirty-three thousand, nine hundred eighty-one".